sept 6

Question 1

supinator, extensor indicis, abductor pollicis longus, extensor pollicis brevis, and extensor pollicis longus are all located in which layer of the posterior forearm?

Answer 1

deep

Question 2

proximal attachments of the supinator

Answer 2

lateral epicondyle, supinator fossa/crest of the ulna

Question 3

distal attachment of the supinator

Answer 3

anterior/lateral/posterior parts of proximal radius

Question 4

action of supinator

Answer 4

supinator of radioulnar joints

Question 5

proximal attachment of extensor indicis

Answer 5

posterior mid-distal forearm

Question 6

distal attachment of extensor indicis

Answer 6

extensor expansion of the 2nd digit

Question 7

action of extensor indicis

Answer 7

extends the 2nd digit

Question 8

proximal attachment of abductor pollicis longus

Answer 8

posterior mid-distal forearm

Question 9

distal attachment of abductor pollicis longus

Answer 9

base of MC1

Question 10

action of abductor pollicis longus

Answer 10

CMC1 abduction

Question 11

proximal attachment of extensor pollicis brevis

Answer 11

posterior mid-distal forearm

Question 12

distal attachment of extensor pollicis brevis

Answer 12

base of the proximal phalanx of the thumb

Question 13

actions of extensor pollicis brevis

Answer 13

extension of MCP1 and CMC1

Question 14

proximal attachment of extensor pollicis longus

Answer 14

posterior mid-distal forearm

Question 15

distal attachment of extensor pollicis longus

Answer 15

base of the distal phalanx of the thumb

Question 16

actions of extensor pollicis longus

Answer 16

extension of IP1 and MCP1

Question 17

where is the anatomical snuffbox

Answer 17

lateral aspect at the base of the thumb

Question 18

what makes up the anterior border of the anatomical snuffbox?

Answer 18

abductor pollicis longus and extensor pollicis brevis

Question 19

what makes up the posterior border of the anatomical snuffbox?

Answer 19

extensor pollicis longus

Question 20

what bone is at the floor of the anatomic snuffbox?

Answer 20

scaphoid

Question 21

opponens pollicis, abductor pollicis brevis, and flexor pollicis brevis are classified as what muscles?

Answer 21

thenar muscles

Question 22

action of opponens pollicis

Answer 22

flex and rotate the thumb medially

Question 23

action of abductor pollicis brevis

Answer 23

abduct the thumb, assists opposition

Question 24

action of flexor pollicis brevis

Answer 24

thumb flexion and assists opposition

Question 25

opponens digiti minimi, abductor digiti minimi, flexor digiti minimi brevis, and palmaris brevis are classified as what muscles?

Answer 25

hypothenar muscles

Question 26

action of opponens digiti minimi

Answer 26

draws MC5 anteriorly and rotates it to oppose the thumb

Question 27

action of abductor digiti minimi

Answer 27

abducts 5th finger

Question 28

action of flexor digiti minimi brevis

Answer 28

flexes proximal phalanx of the 5th digit

Question 29

actions of palmaris brevis

Answer 29

wrinkles the skin on medial palm, covers/protects ulnar nerve and artery

Question 30

adductor pollicis, lumbricals, dorsal interossei, and palmer interossei are classified as what muscles?

Answer 30

deep

Question 31

action of adductor pollicis

Answer 31

adducts the thumb

Question 32

action of lumbricals

Answer 32

MCP flexion, IP extension

Question 33

action of dorsal interossei

Answer 33

abducts digits

Question 34

action of palmar interossei

Answer 34

adducts digits

Question 35

which ribs are "typical"

Answer 35

2-10

Question 36

what characteristics make a typical rib

Answer 36

head, neck, tubercle, shaft

Question 37

rib structure with 2 facets (superior and inferior) that articulate with 2 vertebral bodies

Answer 37

typical rib head

Question 38

rib structure between the head and the tubercle

Answer 38

neck

Question 39

rib structure, articular facet that articulates with a TVP

Answer 39

tubercle

Question 40

rib structure, has an angle and a costal groove for the costal nerve

Answer 40

shaft

Question 41

what is the longest rib?

Answer 41

7

Question 42

which ribs are atypical

Answer 42

1, 11, 12

Question 43

what characteristics man an atypical rib

Answer 43

articulate with only 1 vertebral body

Question 44

how does a rib shaft project?

Answer 44

posteriorly, inferiorly, and laterally until it gets to the rib angle, then curves anteriorly

Question 45

the greatest change in the curvature of the rib

Answer 45

angle

Question 46

structures on the vertebral bodies, most vertebra have superior and inferior, which articulate with the heads of ribs

Answer 46

costal facets

Question 47

how are typical ribs numbered in relation to vertebral bodies?

Answer 47

superior costal facet articulates with the head of the rib of the same number

Question 48

the articular facet on the tubercle of a typical rib articulates with what on the corresponding vertebral body?

Answer 48

transverse costal facet

Question 49

how do the transverse costal facet-articular facet relationship correlate with typical rib/vertebra number

Answer 49

they are the same

Question 50

structure of rib 1 where the anterior scalene muscle attaches

Answer 50

scalene tubercle

Question 51

the grooves for the subclavian artery and vein are located on which rib?

Answer 51

rib 1

Question 52

typical ribs articulate with what kind of facet on vertebral bodies?

Answer 52

demi-facets

Question 53

atypical ribs articulate with what kind of facet on vertebral bodies

Answer 53

complete facets