Joints

Question 1

Fibrous joint

Answer 1

Bone connected by fibrous tissue

Question 2

Cartilaginous joint

Answer 2

Bone connected by cartilage

Question 3

Synovial joint

Answer 3

Articulating (moving) surface enclosed within fluid filled capsule

Made up of articular capsule, cartilage and synovial fluid

Question 4

Synarthrosis

Answer 4

Immovable joint

Question 5

Diarthrosis

Answer 5

Freely movable joint

Question 6

Amphiarthrosis

Answer 6

Slightly movable joint

Question 7

Type of fibrous joint:

Sutures

Answer 7

Immovable, found only in skull. Become fixed at about age 20. Allows passage through birth canal thanks to deformation at birth.

Question 8

Type of fibrous joint:

Syndesmoses

Answer 8

Slightly movable.

Bones held together by interrosseus membrane e.g. middle tibiofibular joint

Question 9

Type of fibrous joint:

Gomphoses

Answer 9

Immovable, found where teeth meet sockets

Question 10

Type of cartilaginous joint:

Synchondroses

Answer 10

Immovable, connected by hyaline cartilage

Question 11

Type of cartilaginous joint:

Symphyses

Answer 11

Slightly movable, united by a layer of fibrocartilage

Question 12

Articular cartilage - functions?

Answer 12

• Shock absorbency

- minimising friction when moving

Question 13

Synovial fluid - functions?

Answer 13

• lubrication of joint
• distribution of nutrients
• shock absorption

Question 14

Articular capsule layers - name and purpose

Answer 14

Fibrous outer layer (holds together bones and provides support)

Synovial inner layer (‘synovium’) - releases synovial fluid and exchanges nutrients between blood and bone.