OSMOSIS - Bones, Joints, and Muscle movements of wrist

Question 1

types of wrist joints

Answer 1

radiocarpal joints
intercarpal joints
carpometacarpal joints
intermetacarpal joints
metacarpophalangeal joints
interphalangeal joints

Question 2

type of radiocarpal joint

Answer 2

condyloid type

Question 3

contents of radiocarpal joint

Answer 3

radius
scaphoid
lunate
triquetrum

Question 4

palmar ligament and dorsal ligament extend from..

Answer 4

from distal radius to the 2 rows of carpal bones

Question 5

function of palmar ligaments

Answer 5

strengthen joint

supinate forearm

Question 6

function of dorsal ligament

Answer 6

stabilize joint

follows radius during pronation

Question 7

contents of ulnar collateral ligament of wrist

Answer 7

radial styloid process

scaphoid bone

Question 8

muscles of the arm that attach to the wrist

Answer 8

the ones with carpi in the name
flexor carpi radialis
flexor carpi ulnaris
extensor carpi radialis longus, brevis
extensor carpi ulnaris

Question 9

muscles for abduction/radial deviation

Answer 9

flexor carpi radialis
extensor carpi radialis longus
extensor carpi radialis brevis
abductor pollicis longus

Question 10

muscles for adduction/ulnar deviation

Answer 10

flexor carpi ulnaris

extensor carpi ulnaris

Question 11

radiocarpal joint blood supply

Answer 11

dorsal carpal and palmar carpal arch from the radial and ulnar artery

Question 12

hiltons law

Answer 12

nerves that innervate the muscles crossing a joint also innervate that joint

Question 13

4 groups of intercarpal joints

Answer 13

midcarpal joint
joints between carpal bones in proximal row
pisotriquetral joint
joints between carpal bones in distal row

Question 14

type of joint in intercarpal joints and their function

Answer 14

plane joints

combined movements augment range of motion

Question 15

content of 1st carpometacarpal joint

Answer 15

metacarpal bone and trapezium

Question 16

type of joint is 1st carpometacarpal joint

Answer 16

saddle joint

Question 17

type of joint the rest of the carpometacarpal joints 2-5

Answer 17

plane joints

Question 18

content of 2nd carpometacarpal joint

Answer 18

trapezoid and 2nd metacarpal

Question 19

content of 3rd carpometacarpal joint

Answer 19

capitate and 3rd metacarpal

Question 20

content of 4th and 5th carpometacarpal joint

Answer 20

4th and 5th metacarpals hamate

Question 21

type of metacarpophalangeal joint

Answer 21

condyloid joint

synovial membrane and joint capsule

Question 22

movements formed in metacarpophalangeal joint

Answer 22

flexion/extension

adduction/abduction

Question 23

type of joint in interphalangeal joint

Answer 23

hinge joint

Question 24

type of movements in interphalangeal joints

Answer 24

flexion/extension

Question 25

flexor digitorum superficialis acts on what bones of the hand

Answer 25

metacarpophalangeal joints

proximal interphalangeal joints of the 2-5

Question 26

flexor digitorum profundus acts on what bones

Answer 26

distal interphalangeal joints 2-5

Question 27

flexor pollicis longus acts on what bones

Answer 27

distal and proximal phalangeal bones of the thumb

Question 28

ulnar nerve innervates

Answer 28

flexor carpi ulnaris
1/2 flexor digitorum profundus
hypothenar muscles and all other intrinsic hand muscles except thenar and 1st 2 lumbrical muscles

Question 29

ulnar nerve is responsible for the cutaneous innervation of

Answer 29

1/3 medial hand

Question 30

symptoms of ulnar nerve injury

Answer 30

tardy ulnar palsy - parasthesia of ring and little finger
loss of fine motor control
paralysis of fingers - claw hand

Question 31

median nerve innervates

Answer 31

all flexor compartments except;
flexor carpi ulnaris
1/2 flexor digitorum profundus

Question 32

median nerve proper of median nerve innervates

Answer 32

1st 2 lumbrical muscles

3 muscles of thenar eminance

Question 33

symptoms of median nerve injury

Answer 33

carpal tunnel syndrome

parasthesia and pain - thumb, middle and index finger

Question 34

symptoms of radial nerve injury in relation to hand

Answer 34

wrist drop in extensor

loss of sensation in dorsal of thumb and lateral hand

Question 35

radial nerve is responsible for the sensory innervation of

Answer 35

dorsal surface of arm and hands

Question 36

causes of radial nerve injury

Answer 36

fracture in shaft of humerus

nerve compression