Arm Muscles

Question 1

Biceps Brachii

Answer 1

Origin:
Short head: coracoid process of scapula. Long head: supraglenoid tubercle of scapula

Insertion:
Radial tuberosity & bicipital aponeurosis into deep fascia on medial part of forearm

Function:
Flexes & supinates forearm

Question 2

Brachialis

Answer 2

Origin:
Distal half of anterior surface of humerus

Insertion:
Coronoid process & tuberosity of ulna

Function:
Flexes forearm

Question 3

Triceps Brachii

Answer 3

Origin:
Long head: infraglenoid tubercle of scapula. Lateral head: posterior shaft of humerus. Medial head: posterior shaft of humerus

Insertion:
Olecranon of ulna

Function:
Extends forearm

Question 4

Coracobrachialis

Answer 4

Origin:
Coracoid process of scapula

Insertion:
Middle third of medial surface of humerus

Function:
Flexes and adducts arm

Question 5

Origin:
Short head: coracoid process of scapula. Long head: supraglenoid tubercle of scapula

Insertion:
Radial tuberosity & bicipital aponeurosis into deep fascia on medial part of forearm

Function:
Flexes & supinates forearm

Answer 5

Biceps Brachii

Question 6

Origin:
Distal half of anterior surface of humerus

Insertion:
Coronoid process & tuberosity of ulna

Function:
Flexes forearm

Answer 6

Brachialis

Question 7

Origin:
Long head: infraglenoid tubercle of scapula. Lateral head: posterior shaft of humerus. Medial head: posterior shaft of humerus

Insertion:
Olecranon of ulna

Function:
Extends forearm

Answer 7

Triceps Brachii

Question 8

Origin:
Coracoid process of scapula

Insertion:
Middle third of medial surface of humerus

Function:
Flexes and adducts arm

Answer 8

Coracobrachialis