wrist muscles and jts

Question 1

what are 4 ligaments in wrist?

Answer 1

volar radiocarpal, dorsal radiocarpal, radio collateral, and ulnar collateral

Question 2

radiocarpal ligaments provide what?

Answer 2

stability in the saggital plane

Question 3

collateral ligaments provide what?

Answer 3

stability in frontal plane

Question 4

What is the primary wrist joint?

Answer 4

radiocarpal jt

Question 5

RC jt is what kind of synovial jt?

Answer 5

condyloid (ellipsoidal) jt

Question 6

radiocarpal jt aritculation of the

Answer 6

radius is concave, allowing the convex carpals to approximate it

Question 7

define midcarpal jt

Answer 7

proximal and distal rows of carpal bones form the complex

Question 8

distal RU jt is what kind of syn jt?

Answer 8

pivot jt

Question 9

distal RU jt allows what cuz its siutated where?

Answer 9

situated medial to RC jt and allows forearm supination and pronation

Question 10

radial deviation

Answer 10

abd

Question 11

ulnar dev

Answer 11

add

Question 12

circumduction at wrist is possible how?

Answer 12

Circumduc5ion of wrist is also possible trough compound RU and MC jts

Question 13

closed pack wrist is when?

Answer 13

full ext of wrist

Question 14

open pack wrist is when?

Answer 14

0 degrees of extenision w/ slight add

Question 15

wrist flexors are located where

Answer 15

on the antermedial aspect of the wrist

Question 16

wrist flexor muscles origin

Answer 16

medial epicondyle of humerus

Question 17

wrist flexor muscles

Answer 17

flexor carpi radialis, flexor carpi ulnaris, flexor digitorum superficialis, and palmaris longus

Question 18

flexor carp radialis also does what

Answer 18

flexion and also wrist abduction, radial deviation

Question 19

flexor carpi ulnaris also does what

Answer 19

adducts wrist aka ulnar deviation

Question 20

what muscle flexes phalanges?

Answer 20

flexor digitorum superficialis

Question 21

anterior muscles of wrist are

Answer 21

wrist flexor muscles

Question 22

post muscles of wrist are

Answer 22

wrist extensor muscles

Question 23

post muscles wrist are located on what?

Answer 23

posterolateral aspect of the wrist

Question 24

wrist extensor origin

Answer 24

at or near the lateral epicondyle of humerius

Question 25

wrist extensor muscles

Answer 25

extensor carpi radialis longis and brevis, extensor digitorum, extensor minimi, and the extensor carpi ulnaris

Question 26

extensor carpi radialis longis also does what?

Answer 26

abd wrist aka radial deviation

Question 27

extensor carpi ulnaris also does

Answer 27

add wrist aka ulnar deviation

Question 28

what causes wrist lunate bone dislocation or scaphoid bone frature?

Answer 28

falling on outstretched arm w/ the wrist extended

Question 29

Carpal tunnel syndrome is a

Answer 29

widespread cumulartive trauma disorder

Question 30

what causes carpal tunnel syndrome?

Answer 30

median nerve entrapment at ant wrist

repeated microtrauma to carpal tunnel and flexor retinaculum due to prolonged manual work w/ wrist in flexed position

Question 31

symptoms of carpal tunnel syndrome

Answer 31

pain, numbness, tingling, and weakness in thumb, index, and middle finger (median nerve distribution)