Joints

Question 1

How many types of joints are there?

Answer 1

3 main types :
-fibrous
-cartilaginous
-synovial

Question 2

Explain fibrous joints

Answer 2

-No jointy cavity
-Thin layer of fibrous tissue connecting the edges of the two bones
-Continuous with periosteum
-No movement e.g between sutures in the skull

Question 3

Explain cartilaginous joints

Answer 3

-No joint cavity
-Bones can be separated by fibrocartilage disk or by a thick layer of hyaline cartilage
-Limited movement

Question 4

Explain synovial joints

Answer 4

-Has a joint cavity!
-Most commonly occuring join in the body
-most important for movement
-Several distinctive features

Question 5

Synovial joints

Answer 5

-Gliding
-Hinge
-Pivot
-Condyloid
-Saddle
-Ball and socket

Question 6

Gliding joints

Answer 6

Least amount of movement.
Bones = flat or slightly curved, glide back and forth and side to side
Found= between tarsal bones + carpal bones

Question 7

Hinge joints

Answer 7

Bend (flex) or straighten (extend) = one direction only = elbow joint, knees, between phalanges
Usually, surface= convex, fits into concave surfaces