Elbow Muscles

Question 0

Biceps brachii short head

Answer 0

Action: adducts, supination, flexion
Origin: coracoid process
Insertion: radial tuberosity

Question 1

Biceps brachii long head

Answer 1

Actions: supination, flexion, abducts
Origin: supraglenoid tubercle
Insertion: radial tuberosity

Question 2

Brachialis

Answer 2

Action: flexion
Origin: anterior distal 1/2 if the humerus
Insertion: coronoid process

Question 3

Brachioradialis

Answer 3

Action: flexion, partial supination and partial pronation
Origin: lateral supracondylar ridge
Insertion: radial styloid process

Question 4

Pronator teres

Answer 4

Action: pronation, flexion
Origin: medial epicondyle and coronoid process
Insertion: proximal anterior lateral aspects of the radius

Question 5

Pronator quadratus

Answer 5

Action: pronation
Origin: anterior distal 1/4 of the ulna
Insertion: anterior distal 1/4 of the radius

Question 6

Triceps brachii long head

Answer 6

Action: extension, adduct,
Origin: infraglenoid tubercle
Insertion: olecranon process

Question 7

Triceps brachii lateral head

Answer 7

Action: extension
Origin: proximal lateral surface of humerus
Insertion: olecranon process

Question 8

Triceps brachii medial head

Answer 8

Actions: extension
Origin: distal medial surface of humerus

Question 9

Anconeus

Answer 9

Action: extension
Origin: posterior surface of lateral condyle
Insertion: olecranon

Question 10

Supinator

Answer 10

Action: supination
Origin: lateral epicondyle
Insertion: lateral surface of proximal radius