CF & E

Question 1

What are the three articulations of the elbow

Answer 1

radiocapitular

humeroulnar

proximal radio-ulnar

Question 2

What does the radial collateral ligament resist?

Answer 2

varus stress

from the inside out, medial to lateral

Question 3

What does the ulnar collateral ligament resist?

Answer 3

valgus stress

lateral to medial

Question 4

What does the anular ligament do?

Answer 4

holds the radius in place, but it never adheres to radius - ulna only

Question 5

If you flex in a supinated hand position what muscle are you using?

Answer 5

biceps brachii

Question 6

If you flex in a neutral position what muscle are you using?

Answer 6

brachioradialis

Question 7

If you flex in a pronated position what muscle are you using?

Answer 7

brachialis

Question 8

What are the branches of the brachial a.?

Answer 8

deep brachial a.
superior ulnar collateral
inferior ulnar collateral

(terminates into radial and ulnar aa.)

Question 9

What are the branches of the deep brachial a.?

Answer 9

middler collateral

radial collateral

Question 10

What are the branches of the ulnar a.?

Answer 10

anterior ulnar recurrent
posterior ulnar recurrent
common interosseous

Question 11

What are the branches of the common interosseous

Answer 11

anterior interosseous

posterior interosseous

Question 12

What is the branch of the posterior interosseous?

Answer 12

interosseus recurrent

Question 13

What is the branch of the radial a.?

Answer 13

radial recurrent

Question 14

What anastomoses with the superior ulnar collateral?

Answer 14

Posterior ulnar recurrent

Question 15

What anastomoses with the inferior ulnar collateral?

Answer 15

anterior ulnar recurrent

Question 16

What anastomoses with the middle collateral?

Answer 16

interosseous recurrent

Question 17

What anastomoses with the radial collateral?

Answer 17

radial recurrent

Question 18

What would be the most ‘ideal’ place to cut your brachial a.?

Answer 18

right before it splits into radial and ulnar–you will still have blood flow from its branches

Question 19

What muscles of the forearm does the ulnar nerve innervate?

Answer 19

flexor carpi ulnaris

1/2 of flexor digitorum profundus (digits 4 and 5)

Question 20

What are the borders of the cubital fossa?

Answer 20

M: pronator teres m.

L: brachioradialis m.

S: line between epicondyles

Floor: brachialis and supinator mm.

Roof: antebrachial fascia

Question 21

What are the contents of the cubital fossa from lateral to medial?

Answer 21

biceps brachii tendon

brachial a.

median n.

Question 22

What is nursemaid’s elbow?

Answer 22

When your radius pops out of its anular ligament

Question 23

Why use the median cubital vein for venipuncture?

Answer 23

usually everyone has one
it runs at an angle so it won’t roll away from needle
no valve in the vein