functional organization of arm and forearm

Question 1

muscles in flexor/anterior compartment of arm

Answer 1

• biceps brachii
• brachialis
• coracobrachialis

Question 2

nerve innervation of anterior compartment of arm

Answer 2

• musculocutaneous

- C6 dermatme: to lat portion

Question 3

blood supply to anterior compartment of arm

-different branches

Answer 3

brachial artery

• muscular: to muscles
• collateral: elbow anastomosis

Question 4

muscles involved in extensor/posterior compartment of arm

Answer 4

• triceps brachii

- anconeous

Question 5

nerve innervation of posterior compartment of arm

Answer 5

• radial

- C5 dermatome: posterior lateral portion

Question 6

blood supply to posterior compartment of arm

Answer 6

deep brachial

• muscular branches: to muscles
• collateral branches: elbow anastomosis

Question 7

boundries of cubital fossa

• superior
• medial
• lateral
• floor

Answer 7

• superior: line connecting epicondyles on eblow
• medial: pronator teres
• lateral: brahcioradialis
• floor:
• medial: brachialis
• lateral: supinator

Question 8

contents of cubital fossa

Answer 8

• radial nerve
• biceps tendon
• brachial artery and vein
• terminal branches of radial and ulnar artery
• median nerve

Question 9

what makes up the “venapuncture”

Answer 9

MEDIAN CUBITAL VEIN

• basilic: medial side into inferior axillary vein
• cephalic: lateral side into axillary vein near apex

Question 10

what muscles make up the pronator group of the anterior compartment of the forearm

Answer 10

• pronator teres

- pronator quadratus

Question 11

what muscles make up the flexor group of the anterior compartment of the forearm

Answer 11

• flexor carpi radialis
• flexor carpi ulnaris
• palmaris longus

Question 12

what muscles make up the digital flexors of the anterior compartment of the forearm

Answer 12

• flexor digitorum superficialis
• flexor digitorum profundus
• flexor pollicis longus

Question 13

what muscles make up the anatomical snuff box

Answer 13

• abductos pollicis longus
• extensor pollicis brevis
• extensor pollicis longus

Question 14

what muscles make up the wrsit extensors of the posterior compartment of the forearm

Answer 14

• extensor carpi radialis longus
• ext carpi radialis brevis
• ext carpi ulnaris

Question 15

what muscles make up the finger extensors of the posteriro compartment of the forearm

Answer 15

• ext digitorum
• ext digiti minimi
• ext indicis

Question 16

what muscles make up tendon comaprtment 1 of extensor tendons

Answer 16

• abd pollicis longus

- ext pollicis brevis