Anatomy -practical 08 - posterior forearm ; dorsum of hand

Question 1

what is the role of most of the muscles in the posterior compartment?

a. extension
b. rotation
c. flexion
d. abduction

Answer 1

a.extension

Question 2

what nerve innervates the posterior compartment?

a. median
b. radial
c. axillary
d. ulnar

Answer 2

b.radial

Question 3

the interosseus branch of which nerve innervates the posterior compartment?

a. ulnar
b. radial
c. axillary
d. median

Answer 3

b.radial

Question 4

which of these pairs of branches innervate the posterior compartment?

a. interosseus and superficial radial
b. lumbrical and deep ulnar
c. interosseus and deep radial

Answer 4

c. interosseus and deep radial

Question 5

how many layers make up the forearm?

a. one
b. four
c. six
d. two

Answer 5

d.two

Question 6

where do most muscles of the posterior compartment have their origin?

a. common extensor tendon, lateral epicondyle
b. common flexor tendon, lateral epicondyle
c. common flexor tendon, medial epicondyle
d. common extensor tendon, medial epicondyle

Answer 6

a. common extensor tendon, lateral epicondyle

Question 7

which of these groups make up the deep group of the posterior compartment?

a. abductor pollicis longus, extensor pollicis longus, extensor pollicis brevis, extensor indices, supinator
b. brachioradialis, extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor digiti minimi, extensor carpi ulnaris
a. adductor pollicis longus, extensor pollicis longus, extensor pollicis brevis, extensor indicies, supinator

Answer 7

a.abductor pollicis longus, extensor pollicis longus, extensor pollicis brevis, extensor indicies, supinator

Question 8

abductor polllicis longus, extensor pollicis longus, extensor pollicis brevis supinator and which other muscle make up the deep group of the posterior compartment?

a. pronator teres
b. extensor indicies
c. flexor digitorum
d. extensor digiti minimi

Answer 8

b.extensor indicies

abductor pollicis longus, extensor pollicis longus, extensor pollicis brevis, extensor indicies , supinator

Question 9

which group of muscles is made up by the brachioradialis, extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor digiti minimi, extensor carpi ulnaris ?

a.deep posterior
b.deep anterior
c,superficial posterior
d. superficial anterior

Answer 9

c.superficial posterior

brachioradialis, extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor digiti minimi, extensor carpi ulnaris

Question 10

what is the function of brachioradialis?

a. extends forearm
b. flexes forearm
c. abducts forearm
d. adducts forearm

Answer 10

b.flexes forearm

Question 11

where does the brachioradialis muscle arise?

a. common extensor tendon, lateral epicondyle
b. lateral supracondylar ridge of the humerus
c. medial supracondylar ridge of the humerus
d. common flexor tendon, lateral epicondyle

Answer 11

b.lateral supracondylar ridge of the humerus

Question 12

where does the brachioradialis insert?

a. lateral supracondylar ridge of the humerus
b. styloid process of distal ulnar
c. styloid process of distal radius

Answer 12

c.styloid process of distal radius

Question 13

where does extensor indicies supply?

a. all digits
b. digits 1-5
c. digit 2
d. digit 3

Answer 13

c.digit 2 - index

Question 14

from which 3 places do the deep muscles originate from?

a. radius, ulnar, interosseus membrane
b. humerus, ulnar, interosseus membrane
c. radius and ulnar
d. common extensor tendon

Answer 14

a.radius, ulnar , interosseus membrane

Question 15

pollicis meaning

Answer 15

thumb

Question 16

where does supinator arise?

a. common extensor origin
b. lateral supracondylar ridge of humerus
c. proximal ulnar and supracondylar ridge of humerus
d. proximal ulnar

Answer 16

c.proximal ulnar and supracondylar ridge of humerus

Question 17

where does the supinator insert?

a. distal radius
b. distal ulna
c. proximal radius
d. proximal ulna

Answer 17

c.proximal radius

Question 18

what makes up the base of the anatomical snuffbox?

a. styloid process of radius
b. styloid process of the ulnar
c. extensor pollicis longus
d. extensor pollicis brevis and abductor pollicis longus

Answer 18

a.styloid process of the radius

Question 19

the styloid process of the radius makes up which part of the anatomical snuff box?

a. medial border
b. lateral border
c. floor
d. base

Answer 19

d.base

Question 20

extensor pollicis longus makes up which part of the anatomical snuffbox?

a. base
b. floor
c. medial border
d. roof

Answer 20

c.medial border

Question 21

which muscle makes up the medial border of the anatomical snuffbox?

a. styloid process of the radius
b. extensor pollicis longus
c. extensor pollicis brevis and abductor pollicis longus
d. schaphoid and trapezium

Answer 21

b.extensor pollicis longus

Question 22

the extensor pollicis brevis and abductor pollicis longus make up which aspect of the anatomical snuffbox?

a. medial border
b. lateral border
c. roof

Answer 22

b.lateral border

Question 23

which of these make up the lateral border of the anatomical snuffbox?

a. styloid process of distal radius
b. extensor pollicis longus
c. flexor pollicis brevis and abductor pollicis longus
d. scaphoid and trapezium

Answer 23

c.flexor pollicis brevis and abductor pollicis longus

Question 24

the scaphoid and trapezium make up which part of the anatomical snuffbox ?

a. medial border
b. lateral border
c. roof
d. floor

Answer 24

d.floor

Question 25

which of these make up the floor of the anatomical snuffbox? a. scaphoid and trapezoid b. scaphoid and trapezium c. scaphoid and lunate d. abductor pollicis longus and extensor pollicis brevis

Answer 25

b.scaphoid and trapezium

Question 26

what makes up the roof of the anatomical snuffbox? a. styloid process of distal radius b. extensor pollicis longus c. flexor pollicis brevis and abductor pollicis longus d. scaphoid and trapezium e. skin

Answer 26

e.skin

Question 27

how many branches of the brachial artery supply the elbow joint? a. 2 b. 3 c. 4 d. 5

Answer 27

c.4

Question 28

which two muscles does the ulnar artery run deep to? a. pronator quadratus and flexor carpi ulnaris b. pronator teres and flexor carpi unaris c. pronator teres and extensor carpi ulnaris d. pronator quadratus and extensor carpi ulnaris

Answer 28

b.pronator teres and flexor carpi ulnaris

Question 29

which artery runs deep to pronator teres and flexor carpi ulnaris ? a. ulnar b. radial c. brachial

Answer 29

a.ulnar

Question 30

the deep palmar arch and superficial palmar arch are supplied by which vessel? a. ulnar b. radial c. radial and ulnar d. brachial

Answer 30

c.radial and ulnar

Question 31

which vessel runs deep to brachioradialis? a. ulnar b. radial c. brachial

Answer 31

b.radial

Question 32

what muscle does the radial artery run deep to? a. brachioradialis b. pronator teres c. flexor carpi ulnaris

Answer 32

a.brachioradialis

Question 33

which branch of the radial nerve innervates the dorsum of the hand? a. deep b. superficial c. interosseus

Answer 33

b.superficial