Lats Anatomy

The lats literally attach your low back to your arms. 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.

Back Anatomy All About The Back Muscles

The name latissimus dorsi which is the technical name for the lats literally means broadest muscle of the back.

Lats anatomy. Latissimus dorsi anatomy in general although not always each end of a muscle attaches to the bone. The latissimus dorsi muscles also known as the lats are the largest muscles of the back. It is relatively thin and covers almost all back muscles at the posterior trunk except the trapezius.

It is relatively thin and covers almost all back muscles at the posterior trunk except the trapezius. Leaning back to straight vertical and all points in between. Anatomy chart courtesy of fcit.

These places of attachment are known as the origin and insertion of a muscle. It adducts and extends the arm at the shoulder joint. Together with the teres major it forms the posterior axillary fold in the armpit where it is the thickest and therefore easy to palpate.

The latissimus dorsi is the largest muscle in the upper body and the widest muscle in the entire body. Being large fan shaped muscles they are able to provide force in a wide range of body positions eg. The lats and traps.

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 latissimus dorsi muscle the lats is the widest muscle in the human body.

The Shoulder Joint