Action of latissimus dorsi

The latissimus dorsi is an important muscle when trying to do backbends correctly. What actions does the latissimus muscle do.

The thoracordorsal nerve serves this muscle.

Action of latissimus dorsi. These actions determine the complex functional activity of the latissimus dorsi muscle. It is a climbing muscle rowing muscle and a swimming muscle. There are several noteworthy supporting functions of the latissimus dorsi.

If the arms are fixed above the head it can act in synergy with pectoralis major to elevate the trunk upwards. Action edit edit source Depression adducts extends and internally rotates the arm at the shoulder. Primary Actions of the Latissimus Dorsi.

Adduction of the arm at shoulder. Pectoralis Major Teres Major Triceps Brachii long head Antagonists. Extension of the arm at the shoulder.

Actions of Latissimus Dorsi. Adducts the arm at the shoulder glenohumeral joint. Medially rotates the arm at the shoulder glenohumeral joint.

Extends the arm at the shoulder glenohumeral joint. Latissimus dorsi works collaboratively with the teres major and pectoralis major to perform actions of the upper extremity. Together these muscles will work to adduct medially rotate and extend the arm at the glenohumeral joint.

The latissimus dorsi muscle is a large triangularly shaped back muscle that helps you do things like pull-ups swimming and even breathing. It functions to stabilize your back while extending your shouldersThe latissimus dorsi muscle is often called the lats or the latissimus for short. Latissimus dorsi works collaboratively with the teres major and pectoralis major to perform actions of the upper extremity.

Together these muscles will work to adduct medially rotate and extend the arm at the glenohumeral joint. What actions does the latissimus muscle do. Medial internal rotation of the shoulder joint.

Extension of the shoulder joint. Adduction of the shoulder joint. Depression of the scapula.

Lateral flexion of the trunk. Extension of the spine. Postures where this muscle contracts.

What actions does the latissimus dorsi perform. Primary Actions of the Latissimus Dorsi. Adduction of the arm at shoulder.

Extension of the arm at the shoulder. Internal rotation of the arm at the shoulder. Secondary Actions of the Latissimus Dorsi.

Assists with extension of the trunk. Assists with flexion of the trunk. Actions of Latissimus Dorsi Muscle.

Depression adducts extends and internally rotates the arm at the shoulder. Primary Actions of the Latissimus Dorsi. Adduction of the arm at the shoulder.

Pectoralis Major Teres Major Triceps Brachii long head Antagonists. Extension of the arm at the shoulder. Once aggravated the latissimus dorsi muscle is often the source of chronic shoulder and neck pain and it can cause tendonitis of the shoulder joint.

The thoracordorsal nerve serves this muscle. Spine T7 spinous processes and supraspinous ligamentsof all lower thoracic lumbar and sacral vertebrae lumbar fascia posteriorthird iliac crest last four ribs interdigitating with external obliqueabdominis and inferior angle of scapula. Which of the following is a primary action of the latissimus dorsi muscle.

Asked Aug 27 2019 in Health Biomechanics by LittleSumo A. External rotation of the glenohumeral joint. The latissimus dorsi assists in depression of the arm with the teres major and pectoralis major.

It adducts extends and internally rotates the shoulder. When the arms are in a fixed overhead position the latissimus dorsi pulls the trunk upward and forward. Action -The action of latissimus dorsi are Extension of arm at shoulder.

Adduction of arm at shoulder. Internal Rotation of arm at shoulder. Resistance Band Pull Backs.

The latissimus dorsi is an important muscle when trying to do backbends correctly. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators. Actions of the Latissimus Dorsi.

The fact that all origins are on the torso and the insertion is on the humerus tell you that the main joint action must be movements of the shoulder girdle and arm bringing it closer to the torso. During concentric contraction the origin and insertion get closer together. The latissimus dorsi muscle named after the Latin term latus wide and dorsi back is a flat wing-like muscle that stretches from its origins at the lower thoracic vertebrae lower ribs scapula and iliac crest and attaches or inserts at a groove in the bone of the upper arm humerus.

It allows us to extend adduct abduct bring away from the body and flex the shoulder joint. The latissimus dorsi is commonly very tight and can contribute to upper cross syndrome which causes neck pain and headaches. The latter action of the latissimus dorsi muscle internal rotation of the shoulder joint is of particular significance to upper cross syndrome.

Due to both its size and its involvement in so many movements the latissimus dorsi is quick to become tight and overused. In fact push ups are an action that can effectively exercise most of the muscles of the whole body. Although it is a little common the effect is obvious.

However if you want to practice the latissimus dorsi with your bare hands you should be targeted. For example kneeling push ups are like this.