Upper Limb 3 - Station 4

Question 1

3 muscles which make up the thenar eminenece

Answer 1

abductor pollicis brevis, flexor pollicis brevis and opponens pollicis

Question 2

4 thenar muscles

Answer 2

abductor pollicis brevis, flexor pollicis brevis, opponens pollicis and adductor pollicis

Question 3

which intrinsic hand muscle has a transverse and an oblique head

Answer 3

adductor pollicis

Question 4

which thenar muscles share innervation

Answer 4

median nerve

Question 5

hand muscles innervated by the median nerve

Answer 5

thenar eminence trio and lumbricals

Question 6

hand muscles innervated by the ulnar nerve

Answer 6

adductor pollicis, hypothenar and interossei

Question 7

the 3 hypothenar muscles

Answer 7

abductor digiti minimi, flexor digiti minimi and opponense digiti minimi

Question 8

where is the thenar eminence

Answer 8

bulky thumb muscle bit

Question 9

where are the hypothenar muscles

Answer 9

on the pinky side of the palm - that big muscle bulk

Question 10

nerve roots which mainly innervate the thenar eminence through the median nerve

Answer 10

C8 and T1

Question 11

what nerve roots innervate all of the hand muscles

Answer 11

C8 and T1

Question 12

which is the only set of hand muscles not to be mainly innervated by T1

Answer 12

the thenar eminence three

Question 13

where is flexor digiti minimi

Answer 13

on the pinky side muscle bulk, part of hypothenar eminence

Question 14

where is lumbrical number 2

Answer 14

middle finger

Question 15

which lumbricals look like they have two bellies

Answer 15

lumbricals 3 and 4

Question 16

where is lumbrical number 4

Answer 16

on the little finger

Question 17

action of adductor pollicis on the thumb

Answer 17

adduction

Question 18

lumbricals are on the dorsal/palmar side of the hand

Answer 18

palmar

Question 19

how many interossei are on the dorsal surface

Answer 19

4

Question 20

how many interossei are on the palmar side

Answer 20

3

Question 21

lumbricals are innervated by the ______ nerve while the interossei are innervated the ______ nerve

Answer 21

lumbrical –> median

interossei –> ulnar

Question 22

which phalange do the lumbricals and interossei insert into

Answer 22

proximal phalange

Question 23

the lumbricals originate from the long flexor tendons of which forearm muscle

Answer 23

flexor digitorum profundus

Question 24

what is meant by bipennate muscles and which interossei are this

Answer 24

they have two bellies, dorsal interossei are bipennate as they originate from both the adjacent metacarpals

Question 25

which interossei originate from just one adjacent metacarpal

Answer 25

palmar

Question 26

where do the interossei originate

Answer 26

the shaft of the metacarpals

Question 27

which interossei abduct the fingers

Answer 27

dorsal

Question 28

which interossei adduct the fingers

Answer 28

palmar

Question 29

how can you remember the actions of the interossei

Answer 29

DAB and PAD

Question 30

innervation of the interossei

Answer 30

ulnar C8, T1

Question 31

ulnar nerve originates from what cord and trunk

Answer 31

inferior trunk –> medial cord

Question 32

what is the name of nerve damage to the inferior trunk

Answer 32

Klumpke’s paralysis

Question 33

which two roots come together to form the inferior trunk

Answer 33

C8 and T1

Question 34

arterial supply of the superficial palmar arch

Answer 34

ulnar

Question 35

arterial supply of the deep palmar arch

Answer 35

radial

Question 36

the median nerve enters the hand through the _______ _______

Answer 36

carpal tunnel

Question 37

ulnar nerve travels _______ to the ulnar artery

Answer 37

medial

Question 38

ulnar nerve is a branch of which cord

Answer 38

medial cord

Question 39

nerve that supplies cutaneous sensation to the little finger and half the ring finger on the palmar and dorsal sides

Answer 39

ulnar

Question 40

nerve that supplies cutaneous sensation to the hand from half ring to thumb

Answer 40

median

Question 41

nerve that supplies the dorsal aspect of the hand with cutaneous sensation from half ring to thumb but not the tips of fingers

Answer 41

radial

Question 42

describe the dermatome of radial nerve on the hand

Answer 42

dorsal surface, half ring to thumb, not the fingertips

Question 43

describe the dermatome of the median nerve on the hand

Answer 43

palmar surface from half ring to thumb including the fingertips