L10 UL Bone and Muscle

Question 1

Answer 1

Question 2

Colles fracture of radius

Answer 2

distal radius commonly fractured upper limb bone

Question 3

cubital fossa

Answer 3

• b/w medial and lateral epicondyles, pronator teres and brachioradialis
• roof: bicipital aponeurosis
• floor: brachialis
• contains:
  
  • median cubital vein
  • cutaneous nerves
  • ulnar and radial arteries
  • median and radial nerves

Question 4

anterior flexor compartment (superficial layer)

Answer 4

from lateral to medial (PFPF)

• Pronator teres
• Flexor carpi radialis
• Palmaris longus
• Flexor carpi ulnaris

all arise from common flexor origin (medial epicondyle of humerus)

Question 5

anterior flexor compartment (intermediate)

Answer 5

flexor digitorum superficialis

Question 6

anterior flexor compartment (deep)

Answer 6

• flexor pollicis longus
• flexor digitorum profundus
• pronator quadratus

Question 7

pronators and supinators

Answer 7

works together to pronate forearm

• pronator teres
• pronator quadratus

supination is the more powerful motion

• supernator
• also by biceps

Question 8

posterior extensor compartment (superficial)

Answer 8

• brachioradialis
• extensor carpi radialis longus
• extensor carpi radialis brevis
• extensor digitorum communis
• extensor digiti minimi
• extensor carpi ulnaris
• anconeus

Question 9

posterior extensor compartment (deep)

Answer 9

• supinator
• abductor pollicis longus
• extensor pollicis brevis
• extensor pollicis longus
• extensor indicis