MSK

Question 1

What are the 5 superior muscles of the forearm and what are there functions?

Answer 1

Pronator teres - Pronates forearm
Flexor carpi radialis - Flex wrist
Flexor carpi ulnaris - Flex wrist
Palmaris longus - Flex wrist
Flexor digitorum superficialis - Flex digits

Question 2

What is the common flexor origin of muscles of the forearm?

Answer 2

Medial epicondyle of humerus

Question 3

What is the function of the brachioradialis and what is it innervated by?

Answer 3

Flexor of the elbow and the radial N

Question 4

What are the branches of the brachial A and where does it bifurcate?

Answer 4

Ulnar and radial N - Cubital fossa

Question 5

What are the 3 deep muscles of the forearm?

Answer 5

Flexor pollicis longus
Flexor digitorum profundus 
Pronator quadratus (transverse)

Question 6

What muscles of the forearm does the median N supply?

Answer 6

All except medial 1/2 of flexor digitorum profundus & flexor carpi ulnaris (which are supplied by ulnar N)

Question 7

What connects the radius and ulna?

Answer 7

Interosseus membrane

Question 8

What is the innervation of the front of the forearm?

Answer 8

All supplied by median N except flexor carpi ulnaris, medial 1/2 of the flexor digitorum profundus and the brachioradialis

Question 9

What is the brachioradialis innervated by?

Answer 9

Radial N

Question 10

What are the flexor carpi ulnaris and medial 1/2 of the flexor digitorum profundus innervated by?

Answer 10

Ulnar N

Question 11

What does the carpal tunnel contain?

Answer 11

Median N 
& Tendons of the:
Flexor digitorum superficialis
Flexor digitorum profundus
Flexor pollicus longus

Question 12

What are the thenar muscles supplied by?

Answer 12

Median N

Question 13

What is the superficial palmar arch?

Answer 13

Termination of the ulnar A

Question 14

What are the medial 1 1/2 fingers innervated by?

Answer 14

Ulnar N

Question 15

What are the lateral 3 1/2 fingers innervated by?

Answer 15

Median N

Question 16

What hand muscles does the median N innervate?

Answer 16

3 thenar muscles & 2 lateral lumbrical muscles (all others supplied by ulnar)

Question 17

What are the 3 thinner muscles? and what are they innervated by?

Answer 17

Abductor pollicis brevis
Flexor pollicis brevis
Opponens pollicis
Median N

Question 18

What is the adductor pollicis innervated by?

Answer 18

Ulnar N

Question 19

What are the 3 hypothenar muscles and what are they innervated by?

Answer 19

Abductor digiti minimi
Flexor digiti minimi
Opponens digiti minimi
Ulnar N

Question 20

What are the 2 lateral lumbrical muscles innervated by?

Answer 20

median N

Question 21

What are the 2 medial lumbrical muscles innervated by?

Answer 21

Ulnar N

Question 22

What is the function of the palmar interossei?

Answer 22

Adducts fingers (P-AD)

Question 23

What is the function of the dorsal interossei?

Answer 23

Abducts fingers (D-AB)

Question 24

Is the flexor digitorum superficialis inserted into the phalanges proximally or distally?

Answer 24

Proximally (spilts)

Question 25

Is the flexor digitorum profundus inserted into the phalanges proximally or distally?

Answer 25

Distally (doesn't split)

Question 26

What are the functions of the biceps brachii?

Answer 26

Forearm supination & flexion

Question 27

How many carpal bones are there?

Answer 27

8

Question 28

What carpal bone articulates w/ the radius?

Answer 28

Scaphoid

Question 29

How many metacarpal bones are there?

Answer 29

5

Question 30

How many phalanges are there in the fingers and thumb?

Answer 30

3 in each finger and 2 in each thumb

Question 31

What is the pectoralis major innervated by and what cord of the brachial plexus do they originate from?

Answer 31

Medial and lateral pectoral nerves (med and lateral cords)

Question 32

What is the pectoralis minor innervated by and what cord of the brachial plexus does it originate from?

Answer 32

Medial pectoral N (medial cord)

Question 33

What nerve are the extensors of the forearm innervated by?

Answer 33

Radial N

Question 34

What nerves innervate the flexors of the forearm?

Answer 34

medial and ulnar N

Question 35

What 3 things does the cubital fossa contain?

Answer 35

brachial A, median N and bicep tendon

Question 36

What roots of the brachial plexus contribute to the radial N?

Answer 36

All (c5, c6, c7, c8, t1)

Question 37

What roots of the brachial plexus contribute to the axillary N?

Answer 37

c5 and c6

Question 38

What roots of the brachial plexus contribute to the musclutocutaneous N?

Answer 38

c5, c6 and c7

Question 39

What roots of the brachial plexus contribute to the median N?

Answer 39

c6, c7, c8 and t1

Question 40

What roots of the brachial plexus contribute to the ulnar N?

Answer 40

c8 and t1

Question 41

What muscle morphology has the greatest power?

Answer 41

Multipennate

Question 42

What muscle morphology can pull the furthest distance?

Answer 42

Strap