Muscles of Arm

Question 1

What muscle is this? OIA?

Answer 1

Brachialis
O: anterior, distal humerus
I: coronoid process of ulna
A: flexes forearm/elbow

Question 2

What muscle is this? OIA?

Answer 2

Triceps brachii
O: infraglenoid tubercle of scapula
I: Olecranon process of ulna
A: extends forearm/elbow

Question 3

What muscle is this?

Answer 3

Biceps brachii
O: supraglenoid tubercle of scapula
I: tuberosity of radius
A: flexes arm, flexes forearm

Question 4

Which muscle is this? OIA?

Answer 4

flexor carpi ulnaris
No O or I
A: flexes and adducts wrist

Question 5

Which muscle is this? OIA?

Answer 5

Palmaris longus
No O or I
A: flexes wrists

Question 6

Which muscle is this? OIA?

Answer 6

Flexor carpi radialis
No O or I
A: flexes and abducts wrist

Question 7

Which muscle is this? OIA?

Answer 7

Supinator
O: Lateral condyle of humerus
I: Anterolateral surface of radius
A: supinates forearm/elbow

Question 8

Which muscle is this? OIA?

Answer 8

Pronator teres
O: medial epicondyle
I: mid-lateral shaft of radius
A: pronates forearm/elbow