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The pectoantebrachialis muscle is just one-half-inch wide and is the most superficial in the pectoral muscles. Its origin is the manubrium of the sternum, and its insertion is in a flat tendon on the fascia of the proximal end of the ulna. Its action is to draw the forelimb towards the chest. There is no human equivalent.
Pectoral muscles (colloquially referred to as "pecs") are the muscles that connect the front of the human chest with the bones of the upper arm and shoulder. This region contains four muscles that provide movements to the upper limbs or ribs. Deep muscles of the chest, including pectoralis minor, serratus anterior, and subclavius (Gray 1918)
As a whole the action is to adduct and medially rotate the humerus. It also draws the scapula anteriorly and inferiorly. The pectoralis major has four actions which are primarily responsible for movement of the shoulder joint. [7] The first action is flexion of the humerus, as in throwing a ball underhand, and in lifting a child.
Body composition: A major reason for the differences in VO2 max between men and women is attributed to body composition, or the ratio of lean muscle mass to body fat. But that said, if you were to ...
The lateral intermuscular septum extends from the lower part of the crest of the greater tubercle of the humerus, along the lateral supracondylar ridge, to the lateral epicondyle; it is blended with the tendon of the deltoid muscle, gives attachment to the triceps brachii behind, and to the brachialis, brachioradialis, and extensor carpi radialis longus muscles in front.
A chiseled chest. Bulging biceps. Adonis-like abs. Gym rats push and pump weights to stay healthy and enjoy the side effect of looking buff in the process. But does achieving that muscular ...
A woman is suing Sean "Diddy" Combs, accusing the mogul of sexually assaulting her after a party in 1999.. The plaintiff, who is not named in the complaint obtained by PEOPLE, says she was 23 and ...
The brachialis muscle is innervated by the musculocutaneous nerve, which runs on its superficial surface, between it and the biceps brachii. [2] However, in 70-80% of people, the muscle has double innervation with the radial nerve (C5-T1). The divide between the two innervations is at the insertion of the deltoid. [3]