interphalangeal joint

Question 1

classification

Answer 1

synovial hinge joint

Question 2

axis of movement

Answer 2

1 - transverse

Question 3

articular surfaces

Answer 3

head of phalanx
base of phalanx

Question 4

features of articular surfaces

Answer 4

covered in hyaline cartilage
fibrocartilaginous plate present (palmar ligament)

Question 5

3 features of capsule

Answer 5

loose fibrous capsule
strengthened laterally by collateral ligaments
replaced by palmar ligament anteriorly

Question 6

ligaments

Answer 6

collateral
palmar

Question 7

collateral ligament - where and function

Answer 7

side of head of proximal phalanx to side of base of adjacent phalanx
tension increased during flexion

Question 8

palmar ligament - what and function

Answer 8

fibrocartilaginous plate increasing surface area of base of adjacent phalanx
limits extension

Question 9

flexion

Answer 9

90-135 increases towards little finger

Question 10

extension

Answer 10

1-5