Cubital fossa and forearm

Question 1

Boundaries of cubital fossa

Answer 1

Medial: pronator teres Lateral: brachioradialis Superior: Line between medial and lateral humeral epicondyles

Question 2

Contents of cubital fossa

Answer 2

biceps brachii tendon, brachial artery and vein, proximal radial and ulnar arteries and veins, median and radial nerves

Question 3

Roof od cubital fossa

Answer 3

Bicipital aponeurosis

Question 4

Answer 4

Question 5

Connection between radius and ulna

Answer 5

Interosseous membrane

Question 6

Answer 6

Question 7

Answer 7

Tiny yellow branch is common interosseus artery

Tiny orange is posterior interosseus artery

Black is radial and ulnar arteries

Pink is anterior osseous nerve

Green is anterior interosseus artery

Question 8

Answer 8

Question 9

Answer 9

Question 10

Answer 10

Question 11

Answer 11

Question 12

Answer 12

Question 13

Answer 13

Question 14

Answer 14

Question 15

Answer 15

Question 16

Answer 16

Question 17

Answer 17

Question 18

Answer 18

Question 19

Answer 19

Question 20

Answer 20

•Brachioradialis

–Action: **Flexes forearm**

–Proximal attachment: Lateral supracondylar ridge of humerus

–Distal attachment: Distal radius

Question 21

Answer 21

Question 22

Green

Answer 22

Question 23

Answer 23

Question 24

Answer 24

Question 25

Answer 25

Question 26

Answer 26

•Supinator

–Action: Supinates forearm

–Proximal attachment:

Lateral epicondyle of humerus

–Distal attachment: Proximal radius

Question 27

Answer 27

Question 28

Answer 28

•Extensor pollicis brevis

–Action: Extends proximal phalanx of thumb at metacarpophalangeal joint

–Proximal attachment: Posterior radius

–Distal attachment: Base of proximal phalanx of thumb

Question 29

Answer 29

•Extensor pollicis longus

–Action: Extends distal phalanx of thumb

–Proximal attachment: Posterior ulna

–Distal attachment: Base of distal phalanx of thumb

Question 30

Answer 30

•Extensor indicis

–Action: Extends digit 2

–Proximal attachment: Posterior ulna

–Distal attachment: Extensor expansion of digit 2

Question 31

Answer 31

Radial artery on floor of anatomical snuffbox