Elbow origin/insertion

Question 1

Biceps brachii long head

Answer 1

origin- supraglenoid tubercle above the superior lip of the glenoid fossa

insertion- tuberosity of the radius and bicipital aponeurosis

Question 2

Biceps brachii short head

Answer 2

origin- coracoid process of the scapula and upper lip of the glenoid fossa in conjuction with the proximal attachment of the coracobrachialis

insertion- tuberosity of the radius and bicipital aponeurosis

Question 3

Brachialis

Answer 3

origin- distal half of the anterior shaft of the humerus

insertion- coranoid process of the ulna

Question 4

Brachioradialis

Answer 4

origin- distal 2/3 of the lateral condyloid ridge of the humerus

insertion- lateral surface of the distal end of the radius at the styloid process

Question 5

Pronator teres

Answer 5

origin- distal part of the medial condyloid ridge of the humerus and medial side of the proximal ulna

insertion- middle 1/3 of the lateral surface of the radius

Question 6

pronator quadratus

Answer 6

origin- distal 1/4 of the anterior side of the ulna

insertion- distal 1/4 of the anterior side of the radius

Question 7

triceps brachii long head

Answer 7

origin- infraglenoid tubercle below inferior lip of glenoid fossa of the scapula

insertion- olecranon process of the ulna

Question 8

triceps brachii lateral head

Answer 8

origin- upper half of the posterior surface of the humerus

insertion- olecranon process of the ulna

Question 9

triceps brachii medial head

Answer 9

origin- distal 2/3 of the posterior surface of the humerus

insertion- olecranon process of the ulna

Question 10

supinator

Answer 10

origin- lateral epicondyle of the humerous and neighboring posterior part of the ulna

insertion- lateral surface of the proximal radius just below the head

Question 11

anconeus

Answer 11

origin- posterior surface of the lateral condyle of the humerus

insertion- posterior surface of the lateral olecranon process and proximal 1/4 of the ulna