Ch 9: Joints

Question 1

Three categories of joints

Answer 1

-fibrous joints
– Cartilaginous joints
– Synovial joints

Question 2

Fibrous joints

Answer 2

Synarthroses
-Not moveable (skull)

Question 3

Cartilaginous joints

Answer 3

Amphiarthroses
-Slightly moveable (Pelvic joint, ribs)

Question 4

Synovial joints

Answer 4

Diarthroses
-Freely moveable (elbows and stuff)
-Contains synovial fluid

Question 5

Parts of synovial joints

Answer 5

– Joint capsule
– synovial membrane
– joint cavity
– articular cartilage
– ligaments

Question 6

Joint capsule

Answer 6

Connective tissue that extends from the periosteum of each of the articulating bones that encloses the joint cavity

Question 7

Synovial membrane

Answer 7

The moist slippery membrane lines the inside of the joint capsule where it secretes synovial fluid

Question 8

Joint cavity

Answer 8

The small space between the bones that contains synovial fluid

Question 9

Articular cartilage

Answer 9

A thin layer of hyaline cartilage that covers the bone surfaces

Question 10

Ligaments

Answer 10

Tough cords of connective tissue help bind the bones together

Question 11

Six types of synovial joints

Answer 11

-Ball and socket
– pivot
– hinge
– condyloid
– saddle
– gliding

Question 12

Examples of ball and socket joints

Answer 12

Hips and shoulder

Question 13

Example of pivot joints

Answer 13

Atlas and axis

Question 14

Example of hinge joint

Answer 14

Elbow

Question 15

Example of condyloid joint

Answer 15

Radius and carpal bones as well as the joints at the base of the fingers

Question 16

Examples of saddle joint

Answer 16

First metacarpal and trapezium

Question 17

Examples of gliding joints

Answer 17

Tarsals and carpals