Extremities Part 6

Question 1

Following the flow of blood from the heart what is the first branch of the aortic arch?

Answer 1

Brachiocephalic trunk

Question 2

The brachiocephalic trunk bifurcates into what two arteries?

Answer 2

•Right common carotid artery
•Right subclavian artery

Question 3

Following the flow of blood from the heart what is the second branch of the aortic arch?

Answer 3

Left common carotid artery

Question 4

Following the flow of blood from the heart what is the third branch of the aortic arch?

Answer 4

Left subclavian artery

Question 5

What region of the body do the subclavian arteries supply?

Answer 5

•Upper extremity
•Some thoracic structures
•The brain via the vertebral arteries

Question 6

What artery is the main arterial supply of the upper extremity?

Answer 6

Subclavian artery

Question 7

What is the lateral border of the subclavian artery?

Answer 7

The lateral border of the first rib

Question 8

What artery extends from the lateral border of the first rib to the inferior border of the teres major?

Answer 8

Axillary artery

Question 9

What arteries form an anastomosis around the surgical neck of the humerus?

Answer 9

Humeral circumflex arteries

Question 10

What artery extends from the inferior border of the teres major to its bifurcation in the cubical fossa?

Answer 10

Brachial artery

Question 11

What artery supplies the triceps brachii and other posterior structures of the brachium?

Answer 11

Deep brachial artery

Question 12

What are the two main arteries of the forearm?

Answer 12

Ulnar and radial arteries

Question 13

What artery of the forearm is readily palpated for a pulse?

Answer 13

Radial artery

Question 14

What are the two anastomoses that lie within the palm and supply the hand?

Answer 14

Superficial and deep palmar arches

Question 15

What are the two groups of veins in the upper extremity?

Answer 15

Superficial and deep

Question 16

What superficial network of veins lies on the dorsum of the hand?

Answer 16

Dorsal venous arch

Question 17

What superficial vein runs adjacent to the medial surface of the upper extremity?

Answer 17

Basilic vein

Question 18

What superficial vein runs alongside the lateral aspect of the upper limb?

Answer 18

Cephalic vein

Question 19

The cephalic vein drains into what vein?

Answer 19

Axillary vein

Question 20

What vein joins the cephalic and basilic veins in the cubital fossa?

Answer 20

Median cubital vein

Question 21

What network of deep veins drains the hand?

Answer 21

Palmar venous arches

Question 22

What deep veins run parallel to the main arteries of the forearm?

Answer 22

Radial and ulnar veins

Question 23

The deep veins of the forearm converge to form what vein?

Answer 23

Brachial vein

Question 24

The deep veins of the forearm converge to form what vein?

Answer 24

Brachial vein

Question 25

What deep vein is formed by the convergence of the brachial and basilic veins?

Answer 25

Axillary vein

Question 26

What vein has the lateral border of the first rib as its lateral border?

Answer 26

Subclavian vein

Question 27

The external jugular vein drains into what vein?

Answer 27

Subclavian vein

Question 28

Veins that drain the head neck and upper limbs merge to form what vessels?

Answer 28

Left and right brachiocephalic veins

Question 29

The convergence of the internal jugular vein and the subclavian vein forms what vein?

Answer 29

Brachiocephalic vein

Question 30

The convergence of the internal jugular vein and the subclavian vein forms what vein?

Answer 30

Brachiocephalic vein

Question 31

The convergence of the brachiocephalic veins forms what vein?

Answer 31

Superior vena cava

Question 32

The brachial plexus arises from what spinal nerves?

Answer 32

C5-T1

Question 33

Where is the brachial plexus located?

Answer 33

Lateral neck and axilla

Question 34

What regions of the body does the brachial plexus innervate?

Answer 34

Pectoral girdle and upper extremity

Question 35

What is the motor innervation of the axillary nerve?

Answer 35

•Deltoid •Teres minor

Question 36

What is the cutaneous innervation of the axillary nerve?

Answer 36

Superolateral portion of the arm

Question 37

What is the motor innervation of the median nerve?

Answer 37

•Anterior forearm muscles •Thenar muscles •Two lateral lumbricals

Question 38

What is the cutaneous innervation of the median nerve?

Answer 38

Palmar side of the lateral 3 1/2 fingers and the lateral one half of the ring finger and from the dorsal tips of the same fingers

Question 39

What is the motor innervation of the musculocutaneous nerve?

Answer 39

Anterior arm muscles

Question 40

What is the cutaneous innervation of the musculocutaneous nerve?

Answer 40

Lateral surface of the forearm

Question 41

What is the motor innervation of the radial nerve?

Answer 41

•Posterior arm muscles •Posterior forearm muscles

Question 42

What is the cutaneous innervation of the radial nerve?

Answer 42

Posterior arm and forearm surface and the dorsolateral side of the hand

Question 43

What is the motor innervation of the ulnar nerve?

Answer 43

•Some of the anterior forearm muscles •Intrusive muscles of the hand

Question 44

What is the cutaneous innervation of the ulnar nerve?

Answer 44

Dorsal and palmar aspects of the medial 1 1/2 fingers