Elbow and Cubital Fossa

Question 1

Three articulations

Answer 1

Radiocapitellar
Humeroulnar
Proximal Radio-Ulnar

Question 2

Radial Collateral Ligament resists

Answer 2

Varus stresses (medial oriented, distal segment goes toward midline)

Question 3

Ulnar Collateral Ligament resists

Answer 3

Valgus stresses (lateral oriented, distal segment goes away from midline)

Question 4

Anular ligament purpose

Answer 4

holds radial head in place

Question 5

Primary pronator muscle

Answer 5

Pronator quadratus

Question 6

Primary supinator muscle

Answer 6

Biceps brachii

Question 7

Forearm flexion
Supinated
Neutral
Pronated

Answer 7

Biceps brachii
Brachioradialis
Brachialis

Question 8

Branches of Brachial artery

Answer 8

Deep Brachial
Superior Ulnar collateral
Inferior Ulnar collateral
Radial
Ulnar

Question 9

Ulnar artery branches

Answer 9

Anterior ulnar recurrent
Posterior ulnar recurrent
Common Interosseous

Question 10

anastomosis

Answer 10

Superior Ulnar Collateral
Posterior Ulnar Recurrent

Inferior Ulnar Collateral
Anterior Ulnar Recurrent

Middle Collateral
Interosseous Recurrent

Radial Collateral
Radial Recurrent

Question 11

Radial Nerve
Origin
Cord
innervates

Answer 11

C5-T1
Posterior Cord
Posterior Arm and Forearm

Question 12

Ulnar Nerve
Origin
Cord
Innervates

Answer 12

C8-T1
Medial cord
flexor carpi ulnaris, 1/2 flexor digitorum profundus, and hand

Question 13

Median Nerve
Origin
Cord
Innervates

Answer 13

C6-T1
Medial cord
Anterior forearm and thumb

Question 14

Contents of Cubital fossa (lateral to medial)

Answer 14

Biceps brachii Tendon
Brachial Artery
Median Nerve

Question 15

Why choose median cutibal vein?

Answer 15

1: normal: doesnt vary much
2: comes at an angle so need goes in first try
3: no valve within the vein