G: Upper Limb

Question 1

Which superficial vein of the upper limb runs along the lateral arm?

Answer 1

Cephalic vein

Question 2

Which superficial vein runs medial to the arm?

Answer 2

Basilic vein

Question 3

Which vein connects the cephalic and basilic veins at the cubital fossa? What is it used for?

Answer 3

Median cubital vein.

IV vein

Question 4

Which dorsal vein of the hand drains into both cephalic and basilic veins?

Answer 4

Dorsal venous arch of hand

Question 5

What divides the arm into anterior and posterior sections?

Answer 5

Deep fascia of the arm

Question 6

Biceps brachii muscle?

Answer 6

O&I: connects scapula to elbow

A: flexes and supinate forearm

N: musculocutaneous nerve; brachial vessels

Question 7

The ______ _______ of the biceps brachii appears shorter and is more lateral than the other head.

Answer 7

Long head

Question 8

Coracobrachialis muscle?

Answer 8

O&I: scapula to medial humerus

A: flexes arm

N: musculocutaneous nerve; brachial vessels

Question 9

Brachialis muscle?

Answer 9

O&I: connects lower humerus to ulna

A: flexes forearm

N: radial and musculocutaneous nerves; brachial vessels

Question 10

Which three motor nerves run through the anterior compartment of the arm?

Answer 10

Musculocutaneous nerve, median nerve, ulnar nerve

Question 11

Which two cutaneous nerves run through the anterior compartment of the arm?

Answer 11

Medial brachial nerve, medial antibrachial cutaneous nerve

Supply skin of medial arm and forearm

Question 12

Which nerve and artery are found in the posterior compartment of the arm?

Answer 12

Radial nerve and deep brachial artery

Question 13

Triceps brachii muscle?

Answer 13

O&I: long head is medial and connects to scapula, lateral head is lateral and medial head is deep, both connect to humerus. All connect to ulna.

A: extends forearm

N: radial nerve; deep brachial vessels

Question 14

Which nerves run through the anterior compartment of the forearm?

Answer 14

Median and ulnar nerves (C6-T1)

Question 15

Which nerve runs through the posterior compartment of the forearm?

Answer 15

Radial nerve (C5-C8)

Question 16

What is special about the musculocutaneous nerve?

Answer 16

Goes from muscular -> cutaneous.

Supplies coracobrachialis, biceps, and brachialis. Then emerges as lateral antibrachial cutaneous nerve and supplies skin of lateral forearm

Question 17

Where does the median nerve fun in the forearm?

Answer 17

Between superficial and deep anterior muscles.

Supplies most of anterior forearm

Question 18

What nerve contributes to the funny bone sensation?

Answer 18

Ulnar nerve

Question 19

The ulnar nerve travels on which side of the arm? Supplies which part of forearm?

Answer 19

Travels posteriorly on medial aspect of arm.

Supplies medial forearm (with ulnar artery)

Question 20

Which nerve runs between the lateral and medial heads of triceps?

Answer 20

Radial nerve (with deep brachial artery)

Question 21

Which nerve supplies all triceps brachii and lateral of brachialis?

Answer 21

Radial nerve

Question 22

What does the superficial branch of the radial nerve supply? Deep branch?

Answer 22

Superficial: skin on back of hand

Deep: posterior forearm muscles

Question 23

What does the axillary artery become at the inferior border of teres major?

Answer 23

Brachial artery

Question 24

What does the brachial artery bifurcate to in the cubital fossa?

Answer 24

Radial artery and ulnar artery