Wrist and Hand

Question 1

what are the movements of the thumb

Answer 1

flexion - close fingers
extension - other way
circumduction - circle finger
abduction - spreading
adduction - back together
opposition - little finger to thumb

Question 2

what type of joint is the radiocarpal joint

Answer 2

condyloid, flexion and extension.

Question 3

what type of joint are carpometacarpal joints

Answer 3

plane joints 2nd - 5th - minimal movements, 1st - saddle joints

Question 4

what type of joints are metacarpopholangeal joint

Answer 4

condyloid joints - flexion, extension, abduction, adduction, circumduction

Question 5

what type of joint is the proximal interphalangeal joint

Answer 5

hinge joint - flexion and extension

Question 6

what type of joint is the distal interphalangeal joints

Answer 6

hinge joints - flexion and extension

Question 7

name the action, origins, insertions and layer of the Flexor Pollicis Longus

Answer 7

origins: anterior radius
Insertions: distal phalanx thumb
action: flexes pollicis
Layer: deep

Question 8

name the action, origins, insertions and layer of the Flexor digitorum profundus

Answer 8

origins: Ulna
Insertions: distal phalanxes of fingers
action: flexes fingers
Layer: deep

Question 9

name the action, origins, insertions and layer of the Flexor digitorum superficialis

Answer 9

origins: medial epicondyle
Insertions: middle phalanges of fingers
action: flexes fingers - not at distal IP joint
Layer: Intermediate

Question 10

name the action, origins, insertions and layer of the Flexor carpi radialis

Answer 10

origins: medial epicondyle
Insertions: palmar fascia
action: flexes wrist
Layer: superficial

Question 11

name the action, origins, insertions and layer of the Palmares longus

Answer 11

origins: medial epicondyle
Insertions: palmar fascia
action: weak wrist flexor, anchor for skin and fascia of hand
Layer: superficial

Question 12

name the action, origins, insertions and layer of the Flexor Carpi Ulnaris

Answer 12

origins: medial epicondyle
Insertions: metacarpal 5, also pisiform and hamate
action: ulnar deviation
Layer: superficial

Question 13

name the action, origins, insertions and layer of the extensor carpi radialis longus.

Answer 13

origins: lateral epicondyle
Insertions: base metacarpal 2
action: wrist extension, radial deviation
Layer: superficial

Question 14

name the action, origins, insertions and layer of the Extensor carpi radialis brevis

Answer 14

origins: lateral epicondyle
Insertions: base metacarpal 3
action: wrist deviation, radial deviation
Layer: superficial

Question 15

name the action, origins, insertions and layer of the Extensor digitorum

Answer 15

origins: lateral epicondyle
Insertions: dorsal digital expansion
action: extends fingers
Layer: superficial

Question 16

name the action, origins, insertions and layer of the extensor digiti minimi

Answer 16

origins: lateral epicondyle
Insertions: dorsal digital expansion
action: extends little finger
Layer: superficial

Question 17

name the action, origins, insertions and layer of the extensor carpi ulnaris

Answer 17

origins: lateral epicondyle
Insertions: base of metacarpal 5
action: wrist extension, ulnar deviation
Layer: superficial

Question 18

name the action, origins, insertions and layer of the Extensor Indicis

Answer 18

origins: distal 1/3 of Ulna
Insertions: dorsal digital expansion
action: extends index finger
Layer: deep

Question 19

name the action, origins, insertions and layer of the extensor pollicis longus

Answer 19

origins: middle 1/3 of Ulna
Insertions: distal phalanx
action: extends thumb
Layer: deep

Question 20

name the action, origins, insertions and layer of the extensor pollicis brevis

Answer 20

origins: distal 1/2 of radius
Insertions: proximal phalanx
action: extends thumb
Layer: deep

Question 21

name the action, origins, insertions and layer of the Abductor Pollicis Longus

Answer 21

origins: proximal half of Ulna
Insertions: base metacarpal 1
action: abducts thumb, extends thumb
Layer: deep

Question 22

what is the function of the thenar eminence base of thumb

Answer 22

flexion, adbduction, opposition

Question 23

name some muscles in the thenar eminence

Answer 23

opponens pollicis, flexor pollicis brevis, abductor pollicis brevis

Question 24

what is the function of the hypothenar eminence - base of pinky

Answer 24

flexion, abduction opposition

Question 25

name some muscles in the hypothenar eminence

Answer 25

opponens digiti minimi, flexor digiti minimi, abductor digiti minimi.