wrist chapter 15

Question 1

what Are the two joints

Answer 1

Radiocarpal (A)
Midcarpal (B)

Question 2

Proximal row

Answer 2

S Scaphoid
L Lunate
Tq Triquetrum
P Pisiform

Question 3

distal row

Answer 3

Tm Trapezium
Td Trapezoid
C Capitate
H Hamate

Question 4

define the styloid process

Answer 4

Distal, lateral radius, attachment for collateral ligaments

Question 5

define the hook of the hamate

Answer 5

Transverse carpal ligament attachment

Question 6

supracondylar ridge of the humerus

Answer 6

extensor carpi radialis longus attachment

Question 7

define the radial carpal

Answer 7

Proximally: distal end of radius and radioulnar disk

Distally: scaphoid, lunate, triquetrum

Ulna not part of joint
Synovial, condyloid joint

Biaxial
Flexion-extension
Radial-ulnar deviation
Circumduction

Question 8

define the mid carpal joint

Answer 8

Between two rows of carpal bones

Contributes to wrist motion
Irregular, plane joints

Nonaxial
Gliding Motion

Question 9

define the radial collateral ligament

Answer 9

Styloid process of radius
Scaphoid and trapezium bones
Provide lateral support to the wrist

Question 10

define the ulnar collateral ligament

Answer 10

Styloid process of ulna
Pisiform and triquetrum bones
Provide medial support to the wrist

Question 11

the function of palmar ligament

Answer 11

Thick tough ligament
Limits wrist extension

Attachments
Anterior distal radius and ulna
Anterior surface of the scaphoid, lunate, and triquetrum

Question 12

why is the palmar ligament very important

Answer 12

Very important to wrist function as most activities performed with wrist extended