Arm and Cubit

Question 1

Valgus Angle

Answer 1

angle of forearm that exists in supination

Question 2

Flexion of Elbow

Answer 2

Bent/Bending

Question 3

Extension of Elbow

Answer 3

Arm straight

Question 4

Posterior compartments of the arm

Answer 4

contains the extensors

Question 4

Anterior Compartments of the Arm

Answer 4

contains the flexors

Question 5

Arm superficial veins

Answer 5

Cephalic, Basilic, Medial cubital Vein

Question 6

Components of arm’s flexor compartments

Answer 6

biceps brachii, brachialis, coracobrachialis

Question 7

Long Head Bicep Brachii (attachment, innervation, action)

Answer 7

• Attaches at supraglenoid tubercle and radial tuberosity
• Innervation: musculocutaneous n.
• Actions: shoulder and elbow flexion, forearm supination

Question 8

Short Head Bicep Brachii (attachment, innervation, action)

Answer 8

• Attachment: coracoid process and radial tuberosity
• Innervation: musculocutaneous n.
• Action: shoulder and elbow flexion, forearm supination

Question 9

Coracobrachialis (attachment, innervation, action)

Answer 9

• attachment: coracoid process w/ short head brachialis
• Innervation: musculoucutaneous n.
• Action: shoulder flexion

Question 10

Brachialis (attachment, innervation, action)

Answer 10

-Attachment: from humerus across the elbow to ulnar tuberosity
- Innervation: musculocutanous n.
- Actions: elbow flexion - pulling ulna upward

Question 11

Arm’s Extensor Compartment

Answer 11

Triceps Brachii and Anconeus

Question 12

Long Head Triceps Brachii (attachment, innervation, action)

Answer 12

• Attachment: infraglenoid tubercle to distal attachment of olecranon
• Innervation: radial n.
• Actions: shoulder and elbow extension

Question 13

Medial Head Triceps Brachii (attachment, innervation, action)

Answer 13

• Attach: to humerus underneath long head
• Innervation: radial n.
• Actions: shoulder and elbow extension

Question 14

Anconeus

Answer 14

• Attaches to lateral epicondyle of humerus and olecranon process of the ulna
• Actions: accessory extensor of elbow

Question 15

Nerves of the Anterior Arm

Answer 15

musculocutaneous n. (lateral anterbrachial cutaneous n.), ulnar n, radial n,

Question 16

Nerves of Posterior Arm

Answer 16

radial n., axillary n.

Question 17

Primary artery of the arm

Answer 17

brachial artery

Question 18

Largest single branch of brachial artery

Answer 18

deep brachial artery

Question 19

What brachial a. supplies

Answer 19

Elbow anastomoses

Question 20

Cubital Fossa Borders

Answer 20

-Lateral: brachioradialis
-Medial: pronator teres
-Superior: imaginary line between 2 epicondyles

Question 21

Cubital Fossa Contents

Answer 21

• Biceps brachii tendon
  -Brachial A.
  -Median N.
  -Bicepital Aponeurosis (sheet of connective tissue)