Cubital Fossa / Carpal Tunnel / Anatomical Snuffbox Flashcards Preview

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Flashcards in Cubital Fossa / Carpal Tunnel / Anatomical Snuffbox Deck (20):
1

what are the contents of the cubital fossa?

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

2

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

deep and superficial

3

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

radial and ulnar

4

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

brachialis and supinator

5

what makes up the roof of the cubital fossa?

skin and fascia, reinforced by the bicipital aponeurosis

6

what makes up the lateral border of the cubital fossa?

brachioradialis

7

what makes up the medial border of the cubital fossa?

pronator teres

8

what structures pass through the carpal tunnel?

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

9

which 9 tendons pass through the carpal tunnel?

4x FDP
4x FDS
1x flexor pollicis longus

10

name the nerve that passes through the carpal tunnel?

median

11

what makes up the superficial border of the carpal tunnel?

flexor retinaculum

12

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

recurrent branch
palmar digital branch

13

what does the recurrent branch of the median nerve supply?

thenar muscles

14

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

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

15

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

tendon of extensor pollicis longus

16

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

tendons of abductor pollicis longus and extensor pollicis brevis

17

what makes up the proximal border of the anatomical snuffbox?

styloid process of the radius

18

what makes up the floor of the anatomical snuffbox?

carpal bones - scaphoid and trapezium

19

what are the contents of the anatomical snuffbox?

radial artery
superficial branch of radial nerve
cephalic vein

20

what does the superficial branch of the radial nerve supply?

dorsal skin of the lateral 3.5 digits