anatomical spaces

Question 1

name the borders of the axillary region:

apex
base
anterior wall
lateral wall
medial wall
posterior wall

Answer 1

apex: armpit
base: skin
anterior wall: pec major + minor
lateral wall: upper portion of humerus
medial wall: serratus anterior + rib cage
posterior wall: sub scap, lats, and teres major

Question 2

name the borders of the quadrangular space

Answer 2

inferior margin of teres minor

surgical neck of the humerus

superior margin of teres major

lateral margin of long head of triceps brachii

Question 3

name the contents of the axillary region:

Answer 3

axillary artery
axillary vein
brachial plexus

Question 4

name the contents of the quadrangular space:

Answer 4

axillary nerve
posterior circumflex humeral artery and vein

Question 5

what are the borders of the cubital fossa?

Answer 5

superior: line between lateral and medial epicondyles

medial: pronator teres

lateral: brachioradialis

Question 6

contents of the cubital fossa:

Answer 6

TAN!

tendon (biceps)
artery (brachial)
nerve (median)

*median cubital vein

Question 7

borders of the triangular space:

Answer 7

medial margin: long head of triceps brachii

superior margin: teres major

inferior margin: teres minor

**same borders as the quadrangular space but NO SURGICAL NECK!

Question 8

contents of the triangular space:

Answer 8

circumflex scapular artery and vein

Question 9

what are the borders for the triangular interval?

Answer 9

the lateral margin of the long head of the triceps brachii

the shaft of the humerus

the inferior margin of the teres major

Question 10

what are the contents of the triangular interval?

Answer 10

deep brachial artery

radial nerve

Question 11

what three muscles are in the flexor compartment?

Answer 11

BBC!

Biceps brachii
coracobrachialis
brachialis

Question 12

what are the contents in the extensor compartment?

Answer 12

one muscle with 3 proximal heads

deep brachial artery

radial nerve (C5-T1)

Question 13

what are the borders of the Guyon Canal?

Answer 13

roof: volar carpal ligament
pisiform
hook of hamate

He (is) Vice President! Goyer is vice president!

Question 14

what are the contents of the Guyon Canal?

Answer 14

ulnar artery
ulnar nerve

Question 15

contents of carpal tunnel

Answer 15

10 tendons:
flexor digitorum superficialis (4)
flexor digitorum profundus (4)
flexor pollicis longus
flexor carpi radialis

median nerve

Question 16

borders of anatomical snuffbox

Answer 16

abductor pollicis longus (APL) tendon

extensor pollicis brevis (EPB) tendon

extensor pollicis longus (EPL) tendon

floor: radial artery