arthrology of the hand

Question 1

classify the carpometacarpal joints of the digits 2-5

Answer 1

plane synovial joints

Question 2

describe the articulating surfaces of the carpometacarpal joints 2-5

Answer 2

between distal surfaces of trapezoid, capitate and hamate and the bases of medial 4 metacarpals

Question 3

what 3 sets of ligaments stabilise the carpometacarpal joints

Answer 3

palmar and dorsal carpometacarpal ligaments
interosseous ligaments

Question 4

what movements occur at the carpometacarpal joints 2-5

Answer 4

small amounts of gliding as joints are very stable

Question 5

classify the intermetacarpal joints

Answer 5

plane synovial joints between adjacent sides of metacarpals

Question 6

classify metacarpophalangeal joints 2-5

Answer 6

synovial condyloid joints

Question 7

articular surfaces of metacarpophalangeal joints 2-5

Answer 7

metacarpal head is biconvex, base of proximal phalanx is biconcave

Question 8

what is the arrangement of the joint capsule of the MCP joints

Answer 8

loose capsule
strengthened by collateral ligaments

Question 9

role of collateral ligaments

Answer 9

limits abduction/ adduction

Question 10

role of the deep transverse metacarpal ligament

Answer 10

acts to bind medial 4 heads of metacarpals

Question 11

classify the proximal and distal IP joints 2-5

Answer 11

synovial hinge