Origin of the latissimus dorsi is from spinous processes of thoracic T7–T12, thoracolumbar fascia, iliac crest and inferior 3 or 4 ribs, inferior angle of scapula and insertion on floor of intertubercular groove of the humerus. The latissimus dorsi may be used for the tendon graft surgeries.

What is the insertion of the Latissimus dorsi muscle? crest of lesser tubercle of humerus and floor of intertubercular groove.

The lats connect the pelvis to the upper arm bone to create medial rotation, adduction and extension at the glenohumeral joint, which is the ball and socket joint more commonly known as the shoulder joint. The actions of the latissimus dorsi are easy to remember if you can remember that it’s the handcuff muscle.

Latissimus dorsi is a muscle of posterior back has an attachment to scapula and humerus. Pectoralis major is a superficial muscle of the pectoral region and has a sternal and clavicular part.

When your latissimus dorsi is injured, you might feel pain in your low back, mid-to-upper back, along the base of your scapula, or in the back of the shoulder. You may even feel pain along the inside of the arm, all the way down to your fingers.

If Marines choose pushups, the best they can score is a 70. Men between the ages of 21 and 25 will need 87 pushups to earn max points. Marine women aged 26-30 would need 50 pushups to get the maximum 70 points . In comparison, soldiers need between 71 and 77 for a max score of 100 points on the Army’s fitness test.

eight pull-ups

Men should be able to perform at least 8 pull-ups, and 13-17 reps is considered fit and strong. And women should be able to perform between 1-3 pull-ups, and 5-9 reps is considered fit and strong.

While the U.S. Navy has yet to have a female join their ranks as a Navy SEAL, they did recently have the first female to ever pass the grueling and demanding U.S. Navy SEAL officer training course.