UPDATED Muscle Origin, Insertion, Action - Upper Adv

Front

What is the action of the biceps brachii muscle?

Back

flexes forearm at elbow, supinates forearm and hand

Front

What is the insertion point of the triceps brachii muscle?

Back

olecranon process of ulna

Front

What is the action of the deltoid muscle?

Back

flexes arm at shoulder; adducts and medially rotates arm

Front

What is the primary action of the brachialis muscle?

Back

flexes forearm at elbow

Front

What is the origin of the pectoralis major muscle?

Back

clavicle, sternum, and costal cartilages of ribs 1-6

Front

What is the action of the latissimus dorsi muscle?

Back

extends, adducts, and medially rotates arm

Front

What is the insertion of the supraspinatus muscle?

Back

greater tubercle of humerus

Front

What is the action of the infraspinatus muscle?

Back

laterally rotates arm

Front

What is the origin of the teres major muscle?

Back

inferior angle of scapula

Front

What is the action of the coracobrachialis muscle?

Back

flexes and adducts arm at shoulder