Lats Anatomy

Latissimus dorsi anatomy in general although not always each end of a muscle attaches to the bone. The latissimus dorsi the lats is definitely the widest muscle in the human body and also the largest and most powerful muscle in the back.

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Anatomy chart courtesy of fcit.

Lats anatomy. The latissimus dorsi muscle the lats is the widest muscle in the human body. Together with the teres major it forms the posterior axillary fold in the armpit where it is the thickest and therefore easy to palpate. It is relatively thin and covers almost all back muscles at the posterior trunk except the trapezius.

It begins all the way down in your lower back and attaches onto your arm bone humerus to create shoulder joint internal rotation and extension. The lats literally attach your low back to your arms. It adducts and extends the arm at the shoulder joint.

It is relatively thin and covers almost all back muscles at the posterior trunk except the trapezius. The name latissimus dorsi which is the technical name for the lats literally means broadest muscle of the back. These places of attachment are known as the origin and insertion of a muscle.

Being large fan shaped muscles they are able to provide force in a wide range of body positions eg. Leaning back to straight vertical and all points in between. The lats and traps.

The latissimus dorsi is the largest muscle in the upper body and the widest muscle in the entire body. The latissimus dorsi muscles also known as the lats are the largest muscles of the back.

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