Cubital Fossa / Carpal Tunnel / Anatomical Snuffbox

Question 1

what are the contents of the cubital fossa?

Answer 1

(lateral to medial)
radial nerve
biceps tendon
brachial artery
median nerve

Question 2

which branches does the radial nerve divide into underneath the brachioradialis, in the cubital fossa?

Answer 2

deep and superficial

Question 3

into what two branches does the brachial artery bifurcate upon exiting cubital fossa?

Answer 3

radial and ulnar

Question 4

which two muscles make up the floor of the cubital fossa?

Answer 4

brachialis and supinator

Question 5

what makes up the roof of the cubital fossa?

Answer 5

skin and fascia, reinforced by the bicipital aponeurosis

Question 6

what makes up the lateral border of the cubital fossa?

Answer 6

brachioradialis

Question 7

what makes up the medial border of the cubital fossa?

Answer 7

pronator teres

Question 8

what structures pass through the carpal tunnel?

Answer 8

9 tendons and a nerve
4x FDP
4x FDS
1x flexor pollicis longus
median nerve

Question 9

which 9 tendons pass through the carpal tunnel?

Answer 9

4x FDP
4x FDS
1x flexor pollicis longus

Question 10

name the nerve that passes through the carpal tunnel?

Answer 10

median

Question 11

what makes up the superficial border of the carpal tunnel?

Answer 11

flexor retinaculum

Question 12

what does the median nerve branch into immediately upon leaving the carpal tunnel?

Answer 12

recurrent branch

palmar digital branch

Question 13

what does the recurrent branch of the median nerve supply?

Answer 13

thenar muscles

Question 14

what does the palmar digital branch of the median nerve supply?

Answer 14

sensory to palmar skin and dorsal nail beds of the lateral 3.5 digits
motor to lumbricals

Question 15

what makes up the ulnar (medial) border of the anatomical snuffbox?

Answer 15

tendon of extensor pollicis longus

Question 16

what makes up the radial (lateral) border of the anatomical snuffbox?

Answer 16

tendons of abductor pollicis longus and extensor pollicis brevis

Question 17

what makes up the proximal border of the anatomical snuffbox?

Answer 17

styloid process of the radius

Question 18

what makes up the floor of the anatomical snuffbox?

Answer 18

carpal bones - scaphoid and trapezium

Question 19

what are the contents of the anatomical snuffbox?

Answer 19

radial artery
superficial branch of radial nerve
cephalic vein

Question 20

what does the superficial branch of the radial nerve supply?

Answer 20

dorsal skin of the lateral 3.5 digits