lesson 22

Question 1

Answer 1

Question 2

6.5 muscles of the arm are innervated by what nerve? and what nerve innervates the hand

Answer 2

median nerve arms or forearm

and the ulnar nerve 1.5 muscles are innervated by this nerve

Question 3

Answer 3

Question 4

Answer 4

Question 5

Answer 5

Question 6

Answer 6

Question 7

Answer 7

anterior to the ulna and is the only one that is innervated by the ulnar nerve

Question 8

what is the common flexor origin?

Answer 8

it is known as the medial epicondyle of the humerus

Question 9

Answer 9

Question 10

Answer 10

• none of these muscles originate from the elbow joint that means none of them produce movement there
• they produce movement at the more distal joints

Question 11

Answer 11

Question 12

Answer 12

Question 13

Answer 13

Question 14

Answer 14

anterior interosseous nerve innervates the deeper muscles

but out exception is flexor digitorum profundus, which is innervates by he anterior interosseus nerve and the ulnar nerve

Question 15

what is the pathway of anterior interosseus nerve?

Answer 15

It arises from median nerve between the two heads of pronator teres then it goes anterior to the interosseus membrane between flexor palmaris longus and flexor digitorum profundus

• it termentates at pronantor quadralis

Question 16

tell me more about the ulnar nerve and the ulnar artery

Answer 16

• funny bone hit
• pinching the ulnar nerve
  ulnar nerve is posterior to the median nerve
• deep to flexor carpi ulnaris
• associated with the ulnar bone

both the ulnar artery and nerve run superficially to the flexor retinaculum
- so they don’t cause pinching

• only median nerve runs through the flexor retinaculum

Question 17

Answer 17