Arm/Elbow Flashcards

Question 1

Q

Biceps Brachii

Answer

A

Attachments:
Coracoid process (S)
Supraglenoid tubercle (L)
Radial tuberosity & bicipital aponeurosis.

Action: flexion & supination. S resists dislocation.

Innervation: musculocutaneous nerve.

Question 2

Q

Brachialis

Answer

A

Attachments:
Distal 1/2 of ant. humerus.
Coronoid process and ulnar tuberosity.

Action: all flexion.

Innervation: musculocutaneous nerve.

Question 3

Q

Coracobrachialis

Answer

A

Attachments:
Coracoid process.
Middle 1/3 of humerus.

Actions: adduction & flexion of humerus, resists shoulder dislocation.

Innervation: musculocutaneous nerve.

Question 4

Q

Triceps brachii

Answer

A

Attachments: 
Infraglenoid tubercle (long)
Inferior radial groove (medial)
Superior radial groove (lateral)
Olecranon &amp; fascia of forearm.

Action: extension and resist dislocation, long also adducts.

Innervation: radial nerve.

Brainscape's Knowledge GenomeTM