Special Areas of the UL

Question 1

What are the five special areas of the upper limb?

Answer 1

Triangle of auscultation, triangular space, quadrangular space, cubital fossa and anatomical snuffbox

Question 2

Between which ribs is the triangle of auscultation?

Answer 2

6 and 7

Question 3

What are the boundaries of the triangle of auscultation?

Answer 3

Superomedial: trapezius m. Lateral: medial border of the scapula. Inferior: latissimus dorsi m.

Question 4

Lateral boundary- Triangular space

Answer 4

Long head of the triceps brachii m.

Question 5

Superior boundary- Triangular space

Answer 5

Teres minor m.

Question 6

Inferior boundary- Triangular space

Answer 6

Teres major m.

Question 7

Contents- Triangular space

Answer 7

Circumflex scapular vessels

Question 8

Lateral boundary- Quadrangular space

Answer 8

Shaft of the humerus

Question 9

Medial boundary- Quadrangular space

Answer 9

Long head of the triceps brachii m.

Question 10

Superior boundary- Quadrangular space

Answer 10

Teres minor m.

Question 11

Inferior boundary- Quadrangular space

Answer 11

Teres major m.

Question 12

Contents- Quadrangular space

Answer 12

Posterior circumflex vessels, axillary n.

Question 13

Medial boundary- Cubital fossa

Answer 13

Pronator teres m.

Question 14

Lateral boundary- Cubital fossa

Answer 14

Brachioradialis m.

Question 15

Floor- Cubital fossa

Answer 15

Brachialis and supinator mm.

Question 16

Contents- Cubital fossa

Answer 16

Biceps brachii tendon, brachial artery, median nerve

Question 17

Where is the median cubital vein in relation to the cubital fossa?

Answer 17

Superficial to it

Question 18

Anterior boundary- Anatomical snuffbox

Answer 18

Tendons of abductor pollicis longus, extensor pollicis brevis mm.

Question 19

Posterior boundary- Anatomical snuffbox

Answer 19

Tendon of extensor pollicis longus m.

Question 20

Content- Anatomical snuffbox

Answer 20

Radial a.