click below
click below
Normal Size Small Size show me how
ASMT- A&P2 #3
Muscles of the Brachium, Antebrachium, and Hand
Question | Answer |
---|---|
Anterior Brachial Muscles | Coracobrachialis, Brachialis, Biceps Brachii |
Coracobrachialis (origin) | coracoid process |
Coracobrachialis (insertion) | medial mid brachium |
Coracobrachialis (function) | flexion and adduction of shoulder |
Coracobrachialis (structure/relationship) | small muscle |
Brachialis (origin) | distal 1/2 of humerus |
Brachialis (insertion) | coranoid process of ulna |
Brachialis (function) | flexion of elbow |
Brachialis (structure/relationship) | largest of brachial mm |
Biceps Brachii (origin) | Long: supraglenoid tubercle, Short: coracoid process |
Biceps Brachii (insertion) | radial tuberosity |
Biceps Brachii (function) | flexion of shoulder and elbow |
Biceps Brachii (structure/relationship) | most superficial ant. brachial muscle, crosses over 3 joints, doesn't touch humerus |
Posterior Brachial Muscles | triceps brachii |
Triceps Brachii (origin) | Long: infraglenoid tubercle, Short: distal 1/2 of humerus, Lat: prooximal post. line of humerus |
Triceps Brachii (insertion) | olecranon process |
Triceps Brachii (function) | extension and adduction of shoulder, extension of elbow |
Triceps Brachii (structure/relationship) | is the only posterior brachial mm |
Anterior Antebrachial Muscles (action) | flexion |
Anterior Antebrachial Muscles (attachment) | medial epicondyle |
Posterior Antebrachial Muscles (action) | extension |
Posterior Antebrachial Muscles (attachment) | lateral epicondyle |
Hypothenar | pertains to pinky |
Thenar | pertains to thumb |