Kinesiology: The Elbow Joint Muscles/ Oian

Front 1

brachialis O:

Back 1

anterior lower half of humerus

Front 2

brachialis I:

Back 2

coronoid process and ulnar tuberosity of the ulna

Front 3

brachialis A:

Back 3

elbow flexion while primarily pronated

Front 4

brachialis N:

Back 4

musculocutaneous nerve

Front 5

brachioradialis O:

Back 5

lateral supercondylar ridge of humerus

Front 6

brachioradialis I:

Back 6

styloid process of radius

Front 7

brachioradialis A:

Back 7

elbow flexion while primarily in neutral pronation/ supination

Front 8

brachioradialis N:

Back 8

radial nerve

Front 9

biceps brachii O:

Back 9

Long Head: supraglenoid tubercle, 50% of labrum

Short Head: coracoid process

Front 10

biceps brachii I:

Back 10

radial tuberosity & lacertus fibrosus

Front 11

biceps brachii A:

Back 11

primarily forearm supination, assist in shoulder and elbow flexion

Front 12

biceps brachii N:

Back 12

musculocutaneous nerve

Front 13

triceps brachii O:

Back 13

Long Head: infraglenoid tubercle

Lateral Head: posterior aspect of proximal humerus, lateral to the medial groove

Medial Head: posterior aspect of humerus, distal half to radial groove

Front 14

triceps brachii I:

Back 14

olecranon process

Front 15

triceps brachii A:

Back 15

primary elbow extensor

Long Head: shoulder extension

Front 16

triceps brachii N:

Back 16

radial nerve

Front 17

anconeus O:

Back 17

lateral epicondyle of humerus

Front 18

anconeus I:

Back 18

posterior ulna adjacent to olecranon

Front 19

anconeus A:

Back 19

assist in elbow extension

Front 20

anconeus N:

Back 20

radial nerve

Front 21

pronator teres O:

Back 21

medial epicondyle of the humerus and coronoid process of ulna

Front 22

pronator teres I:

Back 22

lateral aspect of the midshaft of the radius

Front 23

pronator teres A:

Back 23

pronation of the forearm and assist in elbow flexion

Front 24

pronator teres N:

Back 24

median nerve

Front 25

pronator quadratus O:

Back 25

anterior distal 1/3 of ulna

Front 26

pronator quadratus I:

Back 26

anterior distal 1/3 of radius

Front 27

pronator quadratus A:

Back 27

pronation

Front 28

pronator quadratus N:

Back 28

median nerve

Front 29

supinator O:

Back 29

lateral epicondyle of humerus and adjacent ulna

Front 30

supinator I:

Back 30

anterior proximal radius

Front 31

supinator A:

Back 31

supination, assists in extension

Front 32

supinator N:

Back 32

radial nerve