Anterior Muscles of the Arm

Question 1

Biceps Brachii

Answer 1

O-Short Head: tip of coracoid process
Long Head: supraglenoid tubercle of scapula
I-Radial tuberosity and fascia of forearm via bicipital aponeurosis
N-Musculocutaneous nerve
A-Supinates forearm, flexes forearm when supine, assists in flexing arm

Question 2

Brachialis

Answer 2

O-Distal half of anterior surface of humerus
I-Coronoid process and tuberosity of ulna
N-Musculocutaneous nerve
A-Flexes forearm (prime mover)

Question 3

Coracobrachialis

Answer 3

O-Tip of coracoid process of scapula
I-Middle 1/3 of medial surface of humerus
N-Musculocutaneous nerve
A-Helps to flex and adduct the arm