Contraction of the latissimus dorsi muscle of another artistic gymnast on still rings. To state it another way, you don't have to dissect away layers of muscles to locate the lats. Barry CM(1), Kestell G(2), Gillan M(2), Haberberger RV(2), Gibbins IL(2). Anne Asher, ACE-certified personal trainer, health coach, and orthopedic exercise specialist, is a back and neck pain expert. The latissimus dorsi (/ l ə ˈ t ɪ s ɪ m ə s ˈ d ɔːr s aɪ /) is a large, flat muscle on the back that stretches to the sides, behind the arm, and is partly covered by the trapezius on the back near the midline. The tendon is located in the heart of the back, and it is partially covered by the trapezius. The flap was than sutured to the graft. If you have an injury to your lats, you should see your doctor right away. McGraw Hill, pp 570-574, 1997. As the muscle fibers of the lats extend from the origin to the insertion point (the insertion for the lats is located on the inner aspect of your upper arm bone, just below the shoulder joint) they taper into a point. During exhalation, the latissimus dorsi muscle helps decrease the circumference of the trunk, which may have the effect of squeezing more air out. The lats also assist with the breathing process. Moving on in our discussion about muscles of the horse that attach the front leg to the horse, a major one is … Another triangle is situated behind the scapula. Medically reviewed by Eva Umoh Asomugha, M.D. Good examples of activities that use the lats extensively include doing chin-ups, rock climbing, and swimming.. Therefore, the … Latissimus Dorsi Muscle Origin: Spinous processes of vertebrae T7-T12, Thoracolumbar fascia, Posterior third of crest of ilium, Ribs 9-12, Inferior angle of scapula Insertion: Intertubercular groove of the humerus ANZ J Surg, 83: 359–364. It functions to stabilize your back while extending your shoulders.The latissimus dorsi muscle is often called the "lats" or the latissimus for short. The number of dorsal vertebrae to which it is attached varies from four to eight; the number of costal attachments varies; muscle fibers may or may not reach the crest of the ilium. Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. The word latissimus dorsi (plural: latissimi dorsi) comes from Latin and means "broadest [muscle] of the back", from "latissimus" (Latin: broadest)' and "dorsum" (Latin: back). The number of dorsal vertebrae to which it is attached varies from four to eight; the number of costal attachments varies; muscle fibers may or may not reach the crest of the ilium. It has a track record of exceptional reliability, is easy to raise, and has a long and consistent large vascular pedicle with a long arc of rotation.… Research review: Study investigating the amount of force transmitted between the latissimus dorsi and gluteus maximus via the thoracolumbar fascia during pasive and active motion. The latissimus dorsi (/ l ə ˈ t ɪ s ɪ m ə s ˈ d ɔːr s aɪ /) is a large, flat muscle on the back that stretches to the sides, behind the arm, and is partly covered by the trapezius on the back near the midline. A) Dissection of the skin from the pleura anteriorly. Regardless of treatment, patients tend to return to play without any functional losses.[17]. Informative / By clinton. The teres major muscle is a muscle of the upper limb. Rib cage is not shown, except for 10th rib, 11th rib and 12th rib. It is large, flat and triangular in shape originating from large parts of the lumbar region and lower thorax to insert on the humerus through a narrow tendon. Working with a professional can ensure you do the right things, at the right time, to get back to full function quickly. Arnheim, D.D., Prentice, W.E., Principles of athletic training. [3][4] This muscular form is found in ~5% of humans and is sometimes termed the latissimocondyloideus. The pair of muscles are commonly known as "lats", especially among bodybuilders. Updated December 9, 208. The latissimus dorsi (plural: latissimi dorsi) is the large, flat, dorso-lateral muscle on the trunk, posterior to the arm, and partly covered by the trapezius on its median dorsal region. Author information: (1)Anatomy and Histology and Centre for Neuroscience, Flinders University, Australia. Why? Our video, Western Saddle Fit - The Basics, is available either on DVD or streaming on Vimeo! The latissimus dorsi muscle is used the most during exercises that involve pulling and throwing. The latissimus dorsi muscle, whose name means “broadest muscle of the back,” is one of the widest muscles in the human body. Also known as the “lat,” it is a large, flat triangular muscle that is not used strenuously in common daily activities but is an important muscle in many exercises such as pull-ups, chin-ups, lat pulldowns, and swimming. This procedure involves wrapping the latissimus dorsi muscles around the heart and electrostimulating them in synchrony with ventricular systole. The latissimus dorsi is the largest muscle in the upper body. The costal origin may be reduced to rib 12. Den är en av kroppens största muskler. If you have a kyphosis, the front part of your lats will likely be tight. Well this muscle connects the shoulder girdle to the pelvis and is involved with lumbopelvic mechanics. [11], The latissimus dorsi is a potential source of muscle for breast reconstruction surgery after mastectomy (e.g. Also known as the “lat,” it is a very thin triangular muscle that is not used strenuously in common daily activities but is an important muscle in many exercises such as pull-ups, chin-ups, lat pulldowns, and swimming. Latissimus Dorsi and Thoracolumbar Fascia. It is a continuous, viscoelastic sensory system that wraps, connects, divides, and gives cohesion to the entire body. Latissimus dorsi pain can be hard to differentiate from other types of back or shoulder pain. Also known as the “lat,” it is a very thin triangular muscle that is not used strenuously in common daily activities but is an important muscle in many exercises such as pull-ups, chin-ups, lat pulldowns, and swimming. A latissimus dorsi muscle free flap was harvested and anastomosed to a saphenous vein Corlett loop/AV fistula to the facial artery. Their muscle is divided into two segments, which are constructed symmetrically along the determination. Weakness may also interrupt your ability to laterally flex your trunk. extensively described this muscular variant using MRI data and positively correlated its presence with symptoms of neurological impingement. At the top, the lats muscle originates from the bottom six thoracic vertebrae and the last three or four ribs. Part of the origin also includes the thoracolumbar fascia at the level of the lumbar and sacral vertebrae, as well as the back one-third of the outside part of the top of your hip bone. Variation in the insertion of the latissimus dorsi & its clinical importance. Informative / By clinton. KB Books., p 19-25, 1999. This muscle is commonly confused as a rotator cuff muscle, but it is not because it … Dit is een brede, platte spier, de grootste spier van de mens. This wide origin into a pinpointed insertion forms of the muscle, a triangular-like shape. The flap was than sutured to the graft. As the latissimus dorsi inserts into the floor of the intertubercular groove of the, Shoulder extension movements with straight arms such as straight-arm lat pulldowns and, This page was last edited on 30 January 2021, at 17:40. Let your arm hang loose and then press it against your body. This axillary arch crosses the axillary artery, just above the spot usually selected for the application of a ligature, and may mislead a surgeon. Pain in the Latissimus Dorsi is one such condition where pain is felt in the spinal area, shoulder and upper arm of the body. It is large, flat and triangular in shape originating from large parts of the lumbar region and lower thorax to insert on the humerus through a narrow tendon. Latissimus Dorsi. Muscle belly injuries are treated with rehabilitation while tendon avulsion injuries can be treated surgically, or with rehab. The superficial lamina of the posterior layer of the TLF (PLF) is dominated by the aponeuroses of the latissimus dorsi and the serratus posterior inferior. It is a thick but somewhat flattened muscle. The latissimus dorsi muscle is a large, triangularly shaped back muscle that helps you do things like pull-ups, swimming and even breathing. The teres major muscle is positioned above the latissimus dorsi muscle and assists in the extension and medial rotation of the humerus. The latissimus dorsi is responsible for extension, adduction, transverse extension also known as horizontal abduction (or horizontal extension),[1] flexion from an extended position, and (medial) internal rotation of the shoulder joint. The latissimus dorsi muscle, whose name means “broadest muscle of the back,” is one of the widest muscles in the human body. The latissimus dorsi is a large broad muscle of the back that connects the arm to the spine (via the thoracic and lumbar vertebra) and pelvis (through the thoracolumbar fascia). 3rd. It also ties into the thoracolumbar fascia which we will explain more in the origins section. It is present in about 7% of the population and may be easily recognized by the transverse direction of its fibers. The latissimus dorsi (/ l ə ˈ t ɪ s ɪ m ə s ˈ d ɔːr s aɪ /) is a large, flat muscle on the back that stretches to the sides, behind the arm, and is partly covered by the trapezius on the back near the midline. They are called an "accessory breathing muscle," which means they enhance the movements of the trunk during inhalation and exhalation. They do this by lifting (expanding) the circumference of the rib cage when you inhale, which may increase the volume of air that enters your lungs. It functions to stabilize your back while extending your shoulders.The latissimus dorsi muscle is often called the "lats" or the latissimus for short. Keywords: Low Back Pain (LBP), Thoraco-Lumbar Dysfunction, Latissimus Dorsi(LD) Strengthening, Dorso-Lumbar Fascia(DLF) INTRODUCTION Thoraco-lumbar fascia is used for load transfer3. The latissimus dorsi muscle is a real no brainer as it is so big that it is nearly impossible to miss it. Latissimus Dorsi and Thoracolumbar Fascia. The superficial lamina gets tensed by contraction of Back pain is a primary reason to seek medical various muscles, such as the latissimus dorsi, gluteus advice. The latissimus dorsi (plural: latissimi dorsi) is the large, flat, dorso-lateral muscle on the trunk, posterior to the arm, and partly covered by the trapezius on its median dorsal region. Intraoperative views. The serratus posterior inferior originated from the pTLF after 9 weeks, but a connection of the latissimus dorsi with the fascia was established much later. Pain is usually caused by overuse, using poor technique, or not warming up before exercising. In a right SI lesion, the left GM and right LD will contract, and the right GM and left LD will be inhibited. The latissimus dorsi insertion is through a 3-cm broad tendon attached to the medial lip of the intertubercular groove of the humerus. A weak lats muscle may interfere with bringing your arm toward your body or your body toward your arm. It also has a synergistic role in extension and lateral flexion of the lumbar spine. A new technique for autogenous chest wall reconstruction using a latissimus dorsi muscle flap and a free graft of thoracolumbar fascia was utilised in a two-year-old Dobermann after resection of a high-grade osteosarcoma from the left thoracic wall. Acting like a bowstring, it may increase the thoracic kyphosis (counternutation). When both lats are working at the same time they assist with arching the spine (called hyperextension) and with tilting the pelvis anteriorly. It plays an important role in transmitting mechanical forces between tissues, while it provides sliding and gliding between the tissues as well. StatPearls [Internet]. Variations in the extent of this muscle and its attachments are considerable. Overview. In the image above, you can see the attachment of the latissimus dorsi (2) onto the thoracolumbar fascia (1). Read our. Near term, the gluteus maximus was attached to an aponeurosis covering the multifidus behind the sacrum. Latissimus Dorsi: Palpation. Latissimus Dorsi är en muskel som löper snett över ryggen. And finally, the origin of the lats includes just a tiny little bit of the bottom angle of your shoulder blade. When you have nagging lo… !We have all our blog posts relating to how saddles work on horses organized on our website at www.westernsaddlefit.com. The nerve closely accompanies the th… The latissimus dorsi is a triangular, flat muscle, which covers the lumbar region and the lower half of the thoracic region, and is gradually contracted into a narrow fasciculus at its insertion into the humerus. Electromyography suggests that it consists of six groups of muscle fibres that can be independently coordinated by the central nervous system. Posted by RodandDenise on June 3, 2012. While a majority of people suffering from latissimus dorsi pain can get relief by following a corrected lifestyle pattern, rest and certain exercises. If your lats are tight or short, it will be hard to take your arm up in front of you, or out to the side. The muscle takes origin on the iliac crest inferiorly and the thoracolumbar fascia posteriorly near the midline. B) The latissimus dorsi muscle-thoraco-lumbar fascia composite flap has been dissected and tunneled anteriorly to the defect (the arrow points to the area where the thoraco-lumbar fascia has been removed). Therefore, the … Latissimus Dorsi Muscle:. The thoracolumbar fascia is the gray area at bottom centre. It is bounded above by the, The latissimus dorsi can be remembered best for insertion as "A Miss Between Two Majors". A short latissimus dorsi muscle tends to keep your shoulder girdle down and forward. Latissimus Dorsi: Palpation The latissimus dorsi muscle is a real no brainer as it is so big that it is nearly impossible to miss it. He or she can diagnose the problem and get you started on treatment. The word latissimus dorsi (plural: latissimi dorsi) comes from Latin and means "broadest [muscle] of the back", from "latissimus" (Latin: broadest)' and "dorsum" (Latin: back). After harvesting a fascia lata graft with appropriate size, the graft was sutured into the dural defect in a watertight fashion. Er gehört zur sekundären Rückenmuskulatur , die von dorsal auf den Schultergürtel einwirkt. The posterior axillary fold is made up of the most superior aspect of the muscle that begins to narrow before it forms the tendon of insertion. It adducts, extends, and internally rotates the shoulder. 5. Francis, P., Applied anatomy and kinesiology, supplemental materials. This is occasionally muscular, and is the representative of the dorsoepitrochlearis brachii of apes. The nerve supply is via the thoracodorsal nerve, a branch of the posterior cord of the brachial plexus. The muscle may arise only from the ribs rather from the vertebral column, ribs, scapula, and the crest of the ilium as is most common. The latissimus dorsi is a triangular, flat muscle, which covers the lumbar region and the lower half of the thoracic region, and is gradually contracted into a narrow fasciculus at its insertion into the humerus.. Animation. Kendall, Florence Peterson, McCreary, Elizabeth Kendall, and Provance, Patricia Geise. It is a continuous, viscoelastic sensory system that wraps, connects, divides, and gives cohesion to the entire body. This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918), Latissimus dorsi originates from the mid to lower back, Muscles connecting the upper extremity to the. The latissimus dorsi (/ləˈtɪsɪməs ˈdɔːrsaɪ/) is a large, flat muscle on the back that stretches to the sides, behind the arm, and is partly covered by the trapezius on the back near the midline. Strong "lats" help you use your arms to pull your body weight up. Injuries to the latissimus dorsi are rare. Know the causes, symptoms, treatment and prevention of latissimus dorsi pain. Hold the tension and feel with your other arm the latissimus dorsi, especially at the height of your upper arm. Thus, the mTLF lateral end changed from the abdominal wall to the back or pTLF. El músculo dorsal ancho está presente en muchos animales, incluyendo prehistóricos. “Latissimus dorsi” translates literally from the Latin has the “broadest muscle of the back”, which reflects its large, flat structure. Guy et al. Exercises for latissimus dorsi may include: Your latissimus exercise program should be tailored to your needs. Back Muscles: Anatomy, Function, and Rehab Considerations, How the Insertion of Muscles in Your Joints Helps Them Move, Collarbone Popping? The thoracolumbar fascia (lumbodorsal fascia or thoracodorsal fascia) is a deep investing membrane throughout most of the posterior thorax and abdomen although it is a thin fibrous lamina in the thoracic region. In spite of its size, no significant donor functional deficit results from removal of the muscle. It plays an important role in transmitting mechanical forces between tissues, while it provides sliding and gliding between the tissues as well. It also ties into the thoracolumbar fascia which we will explain more in the origins section. Clearly visible latissimus dorsi muscle of an artistic gymnast on pommel horse. Origin: Spinous processes of inferior 6 thoracic vertebrae, thoracolumbar fascia, iliac crest, and inferior 3 or 4 ribs Insertion: Floor of intertubercular groove of humerus Action: Extends, adducts, and medially rotates humerus; raises body toward arms during climbing Kinematic Concepts for Analyzing Human Motion. Sensory nerve fibers containing calcitonin gene-related peptide in gastrocnemius, latissimus dorsi and erector spinae muscles and thoracolumbar fascia in mice. [8], It has a synergistic role in extension (posterior fibers) and lateral flexion (anterior fibers) of the lumbar spine, and assists as a muscle of both forced expiration (anterior fibers) and an accessory muscle of inspiration (posterior fibers).[9]. Genellikle kürek kemiğinin angulus inferiorundan başlayan küçük bir demeti de vardır. After harvesting a fascia lata graft with appropriate size, the graft was sutured into the dural defect in a watertight fashion. 43% had "a substantial amount" of muscular fibers in the latissimus dorsi originating from the scapula. The latissimus dorsi (/ l ə ˈ t ɪ s ɪ m ə s ˈ d ɔːr s aɪ /) is a large, flat muscle on the back that stretches to the sides, behind the arm, and is partly covered by the trapezius on the back near the midline. They occur disproportionately in baseball pitchers. For heart patients with low cardiac output and who are not candidates for cardiac transplantation, a procedure called cardiomyoplasty may support the failing heart. The latissimus dorsi produces adduction, extension, and medial rotation of the humerus and ipsilateral rotation of the thorax (counternutation). The illustration above shows the superficial muscles of the back. El dorsal ancho es un músculo grueso y triangular, que cubre la región lumbar y las 6 últimas vértebras torácicas. A latissimus dorsi muscle free flap was harvested and anastomosed to a saphenous vein Corlett loop/AV fistula to the facial artery. Near term, the gluteus maximus was attached to an aponeurosis covering the multifidus behind the sacrum. It functions to stabilize your back while extending your shoulders.The latissimus dorsi muscle is often called the "lats" or the latissimus for short. Near term, the gluteus maximus was attached to an aponeurosis covering the multifidus behind the sacrum. 9th ed. The Latissimus dorsi is a triangular, flat muscle, which covers the lumbar region and the lower half of the thoracic region, and is gradually contracted into a narrow fasciculus at its insertion into the humerus. Animation. The latissimus dorsi tendon is one of the largest tendon in the back. The latissimus dorsi functions also to keep your back straight when you’re exercising by isometrically contracting to prevent unwanted spinal movements. Der Musculus latissimus dorsi ist ein oberflächlich am Rücken gelegener Skelettmuskel. Baltimore, Maryland: Williams & Wilkins, 1983. Let your arm hang loose and then press it against your body. Most often, working with a physical therapist can help you regain full lat function. Jason DelCollo, DO, board-certified in family medicine. At the level of L4 to L5, the lumbodorsal fascia is not connected to either the spine or ligaments. The skin is incised circumferentially down to the muscle fascia, widening the base of attachment to the muscle, commencing anteriorly to define the serratus anterior and the anterior border of the latissimus dorsi muscle (Figure 39-7). It is relatively thin and covers almost all back muscles at the posterior trunk, except the trapezius. Bhatt CR, Prajapati B, Patil DS, Patel VD, Singh BG, Mehta CD. latissimus dorsi ORIGIN Spine T7, spinous processes and supraspinous ligaments of all lower thoracic, lumbar and sacral vertebrae, lumbar fascia, posterior third iliac crest, last four ribs (interdigitating with external oblique abdominis) and inferior angle of scapula The latissimus dorsi muscle (AKA: 'the lats muscle' or 'the lats') is the widest muscle in the human body. Muscles Testing and Function with Posture and Pain. What Is Latissimus Dorsi Flap Breast Reconstruction Surgery? The tendon and proximal latissimus dorsi muscle actually encircle the teres major, which is the muscle that primarily contributes to the … [1] Latissimus Dorsi actions mainly are Extension, Adduction and Internal Rotation of the upper limb. Latissimocondyloideus or dorsoepitrochlearis, a muscle found in 5% of bodies, may pass from the tendon of latissimus dorsi to the brachial and forearm fascia, to the humerus, to the lateral epicondyle and olecranon, or to the long head of triceps. Thank you, {{form.email}}, for signing up. There are extensive connections between the latissimus dorsi (LD) and gluteus maximus (GMax) muscles and the thoracolumbar fascia (TLF), which suggests a possible pathway for myofascial force transmission. Along with the levator scapulae, trapezius and rhomboid muscles, the latissimus dorsi belongs to the superficial layer of the extrinsic back muscles. These places of attachment are known as the origin and insertion of a muscle. The power/size/strength of this muscle can be trained with a variety of different exercises. The latissimus dorsi muscle is a large, triangularly shaped back muscle that helps you do things like pull-ups, swimming and even breathing. Auf die Fläche bezogen ist der Musculus latissimus dorsi der größte Skelettmuskel des menschlichen Körpers. Many things may underlie a case of back pain, from disc injury to psychological issues to tissue changes that occur over time. Blunt trauma to the muscle may also incite latissimus dorsi myofascial pain syndrome. Depending on the line of pull, the trapezius muscles can be recruited as well; horizontal pulling motions such as rows recruit both latissimus dorsi and trapezius heavily. The serratus posterior inferior originated from the pTLF after 9 weeks, but a connection of the latissimus dorsi with the fascia was established much later. "Anatomy Atlases: Illustrated Encyclopedia of Human Anatomic Variation: Opus I: Muscular System: Alphabetical Listing of Muscles: L:Latissimus Dorsi", http://onlinelibrary.wiley.com/doi/10.1111/j.1445-2197.2012.06292.x/full, "Immediate partial breast reconstruction with endoscopic latissimus dorsi muscle flap harvest", "Correction of Poland's Syndrome: Case Report and Review of the Current Literature", https://en.wikipedia.org/w/index.php?title=Latissimus_dorsi_muscle&oldid=1003784713, Wikipedia articles incorporating text from the 20th edition of Gray's Anatomy (1918), Short description is different from Wikidata, All Wikipedia articles written in American English, Wikipedia articles with multiple identifiers, Creative Commons Attribution-ShareAlike License. The Latissimus dorsi (Fig. The word latissimus dorsi (plural: latissimi dorsi) comes from Latin and means "broadest [muscle] of the back", from "latissimus" (Latin: broadest)' and "dorsum" (Latin: back). Sensory nerve fibers containing calcitonin gene-related peptide in gastrocnemius, latissimus dorsi and erector spinae muscles and thoracolumbar fascia in mice. If you have scoliosis (C curve in your spine), one side of your lats muscle will likely be tighter than the other. 21% had little or no connecting tissue between the two structures. StatPearls [Internet]. Mannu, G. S., Farooq, N., Down, S., Burger, A. and Hussien, M. I. In recent decades, the idea that your fascia  thick connective tissue that covers, organizes, and supports all the muscles, bones, tendons, ligaments and organs of the body may be the source of back pain has been investigated with piqued interest by scientists and lay practitioners alike. Other things the latissimus dorsi does is to bring the whole shoulder girdle down (called depression), as well as assist in the act of side bending (called lateral flexion). Los fascículos del músculo se juntan en una fibra relativamente estrecha en forma de espiral, de tal modo que la inserción es más fuerte. Lung K, Lui F. Anatomy, Thorax, long thoracic nerve. The muscle runs between the trunk, via an extensive attachment and the humerus by a narrow tendo… Axillary arches shown from two different angles. T6-T12 vertebraların processus spinosusları, Fascia thoracolumbalis, ligamentum supraspinale ve son 4 kaburgadan başlar. Mori has reported the vertebral, costal, a Author information: (1)Anatomy and Histology and Centre for Neuroscience, Flinders University, Australia. Treatment and rehab for a latissimus problem will vary depending on the problem. When the arms are in a fixed overhead position, the latissimus dorsi pulls the trunk upward and forward. In: Hall SJ. Nedtill sitter den fast ungefär mitt på ryggraden, på tionde till tolfte revbenen, och på höftbenskammen (Taggutskott Th VII-XII, fascia thoracolumbalis, crista iliaca samt costae X-XII). Jeno SH, Varacallo M. Anatomy, back, latissimus dorsi. [10] Because the latissimus dorsi connects the spine to the humerus, tightness in this muscle can manifest as either sub-optimal glenohumeral joint (shoulder) function which leads to chronic pain or tendinitis in the tendinous fasciae connecting the latissimus dorsi to the thoracic and lumbar spine. Latissimus dorsi may be absent unilaterally or bilaterally. Together, the latissimus dorsi (LD) and opposite gluteus maximus (GM) muscles create a force that induces nutation on the gluteal side and counternutation on the latissimus dorsi side. Latissimus Dorsi is one of four muscles responsible for the thoracobrachial motion. Lesions of C-7 will affect latissimus function. With your trunk stationary, the lats turn your arm in, they bring it closer to the midline of your body and they extend your shoulder joint back (essentially the same as bringing your arm back). It inserts into the humerus where it acts as a humeral adductor and internal rotator. The skin is incised circumferentially down to the muscle fascia, widening the base of attachment to the muscle, commencing anteriorly to define the serratus anterior and the anterior border of the latissimus dorsi muscle (Figure 39-7). Musculus latissimus dorsi De musculus latissimus dorsi of brede rugspier behoort tot de dorsale (dorsaal) spiergroep. Latissimus Dorsi. Research review: Study investigating the amount of force transmitted between the latissimus dorsi and gluteus maximus via the thoracolumbar fascia during pasive and active motion. [5], The latissimus dorsi crosses the inferior angle of the scapula. Latissimus Dorsi is one of four muscles responsible for the thoracobrachial motion. eds. The lats are superficially located, which means they are clearly visible (when the skin is removed). 10.1055/b-0040-176813 47 Latissimus Dorsi Flap AnatomyGlyn E. Jones Summary The anatomy of the latissimus dorsi muscle is key to understanding and safely performing this flap for breast reconstruction. J Orthop. The Anatomy of the Latissimus Dorsi Muscle, Ⓒ 2021 About, Inc. (Dotdash) — All rights reserved. Dess övre fäste är på överarmsbenet (crista tuberculi minoris). 2013;10(1):25-8. doi:10.1016/j.jor.2013.01.002. [2], A fibrous slip usually passes from the upper border of the tendon of the Latissimus dorsi, near its insertion, to the long head of the triceps brachii. 36% had few or no muscular fibers, but a "soft fibrous link" between the scapula and the latissimus dorsi. It is important to look at the thoracolumbar junction mainly the latissimus dorsi. Due to bypassing the scapulothoracic joints and attaching directly to the spine, the actions the latissimi dorsi have on moving the arms can also influence the movement of the scapulae, such as their downward rotation during a pull up. Most latissimus dorsi exercises concurrently recruit the teres major, posterior fibres of the deltoid, long head of the triceps brachii, among numerous other stabilizing muscles. Here's What You Need to Know, The Superficial Layer of Your Back Includes the Extrinsic Muscles, Quick Exercise Routine for Spinal Stenosis and Arthritis, Strength Exercises to Help Your Low Back Arthritis Symptoms, Pectoral Girdle: Anatomy, Function, and Treatment, Cervical Rib: Anatomy, Location, and Treatment, The Splenius Muscle Group of the Uppermost Deep Back, Cervical Vertebrae: Anatomy, Function, and Rehabilitation, Special Diagnostic Tests for Shoulder Pain, This Body Part Is Responsible for All of Your Physical Activity, How to Recover Strength and Flexibility After Breast Surgery. Injury to the thoracodorsal nerve, which arises from cervical level six, seven, and eight may result in weakness or paralysis of the latissimus muscles.. The word latissimus dorsi (plural: latissimi dorsi) comes from Latin and means "broadest [muscle] of the back", from "latissimus" (Latin: broadest)' and "dorsum" (Latin: back). Sign up for our Health Tip of the Day newsletter, and receive daily tips that will help you live your healthiest life. Why? The latissimus dorsi muscle is susceptible to myofascial pain syndrome, which most often results from repetitive microtrauma to the muscle during such activities as vigorous use of exercise equipment or tasks that require reaching in a forward and upward motion.