Exam 2: Quiz 5 - Classification of Joints Flashcards Preview

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Flashcards in Exam 2: Quiz 5 - Classification of Joints Deck (21):
1

joints

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

2

Three types of joints

- synarthrosis
- amphiarthrosis
- diarthrosis or synovial

3

synarthrosis

immovable
- sutures
- gomphosis
- synchondrosis
- synostosis

4

sutues

joints found only in the skull - bones are interlocked together

5

gomphosis

joints between teeth and jaw - periodontal ligaments of teeth

6

synchondrosis

joint within epiphysis of bone - binds diaphysis to epiphysis

7

synostosis

joint between 2 fused bones - fusion of 3 coxal bones

8

Amphiarthrosis

slightly movable
- syndesmosis
- symphysis

9

syndesmosis

ligaments that connect 2 bones but limit their motion
- ex: radius and ulna, tibia and fibula

10

symphysis

bones are separated by a wedge or pad of cartilage
- ex: pubic bone of 2 coal bones

11

diarthrosis or synovial

freely movable
- joint capsule
- joint cavity
- articular cartilages
- synovial membrane
- synovial fluid
- accessory structures

12

joint capsule

thick layer of dense, connective tissue surrounding synovial joint

13

joint cavity

filled with synovial fluid

14

articular cartilages

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

15

synovial membrane

lines joint cavity, produces synovial fluid

16

synovial fluid

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

17

accessory structures

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

18

cartilages and fat pads

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

19

ligaments

connect bone to bone, provide stability

20

tendon

connect muscle to bone, provide stability

21

bursae

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