Exam 2: Quiz 5 - Classification of Joints

Question 1

joints

Answer 1

connections between bones that may or may not permit movement - can be classified based on their range of motion

Question 2

Three types of joints

Answer 2

• synarthrosis
• amphiarthrosis
• diarthrosis or synovial

Question 3

synarthrosis

Answer 3

immovable

• sutures
• gomphosis
• synchondrosis
• synostosis

Question 4

sutues

Answer 4

joints found only in the skull - bones are interlocked together

Question 5

gomphosis

Answer 5

joints between teeth and jaw - periodontal ligaments of teeth

Question 6

synchondrosis

Answer 6

joint within epiphysis of bone - binds diaphysis to epiphysis

Question 7

synostosis

Answer 7

joint between 2 fused bones - fusion of 3 coxal bones

Question 8

Amphiarthrosis

Answer 8

slightly movable

• syndesmosis
• symphysis

Question 9

syndesmosis

Answer 9

ligaments that connect 2 bones but limit their motion

- ex: radius and ulna, tibia and fibula

Question 10

symphysis

Answer 10

bones are separated by a wedge or pad of cartilage

- ex: pubic bone of 2 coal bones

Question 11

diarthrosis or synovial

Answer 11

freely movable

• joint capsule
• joint cavity
• articular cartilages
• synovial membrane
• synovial fluid
• accessory structures

Question 12

joint capsule

Answer 12

thick layer of dense, connective tissue surrounding synovial joint

Question 13

joint cavity

Answer 13

filled with synovial fluid

Question 14

articular cartilages

Answer 14

covers bony surfaces to act as shock absorbers and reduce friction, typically at ends of long bones

Question 15

synovial membrane

Answer 15

lines joint cavity, produces synovial fluid

Question 16

synovial fluid

Answer 16

• provides lubrication
• nourishes chondrocytes in articular cartilages
• acts as a shock absorber

Question 17

accessory structures

Answer 17

• cartilages and fat pads
• ligaments
• tendon
• bursae
• fat pad

Question 18

cartilages and fat pads

Answer 18

• menisci or articular discs - pads of fibrous cartilage, act as cushion
• fat pads - fat found around periphery of joint to provide protection

Question 19

ligaments

Answer 19

connect bone to bone, provide stability

Question 20

tendon

Answer 20

connect muscle to bone, provide stability

Question 21

bursae

Answer 21

small, synovial fluid-filled pockets in connective tissue; forms where tendon or ligament rubs against other tissues to reduce friction and act as shock absorber