Synovial Joints

Question 1

Plane joints

Answer 1

apposed articular surfaces are flat thus permits the bones to slide on one another

sternoclavicular and acromioclavicular joints

Question 2

Hinge joints

Answer 2

flexion and extension

elbow, knee and ankle joints

Question 3

Condyloid joints

Answer 3

have 2 distinct convex surfaces that articulate w/ 2 concave surfaces

flexion, extension, abduction and adduction

metacarpophalangeal joints or knuckle joints

Question 4

Ellipsoid joints

Answer 4

elliptical convex articular surface fits into an elliptical concave articular surface

flexion, extension, abduction and adduction

wrist joint

Question 5

Saddle joints

Answer 5

articular surfaces are reciprocally concavoconvex and resemble a saddle on a horse’s back

flexion, extension, abduction, adduction, rotation

carpometacarpal joint of the thumbn

Question 6

Ball and socket joints

Answer 6

ball shaped head of one bone fits into a socketlike concavity

flexion, extension, abduction, adduction, medial rotation, lateral rotation and circumduction

shoulder and hip joints