Articulations Joints Ch. 9

Front 1

Articulation

Back 1

Joint

Front 2

Joints are classified in two ways

Back 2

Structure---type of CT binding 2 bones

Function--relative degree of mobility between 2 bones

Front 3

3 types of joints
(Function)

Back 3

Synarthrosis
Amphiarthrosis
Diarthrosis

Front 4

Synarthrosis Joint

Back 4

immobile joint
 eg. skull sutures

Front 5

Amphiarthrosis

Back 5

slightly mobile joint
 eg. Radius and ulna

Front 6

Diarthrosis

Back 6

freely mobile joint
 eg. knee, shoulder, hip

Front 7

3 types of joints
(Structure)

Back 7

Fibrous
Cartilaginous
Synovial

Front 8

Fibrous Joints

Back 8

held together by dense regular CT
Strong

Front 9

Cartilaginous Joints

Back 9

held together by cartilage

Front 10

Synovial joints

Back 10

bones separated by fluid-filled cavity enclosed by a capsule and stabilized by ligaments

Front 11

Most fibrous joints are...
(Function)

Back 11

Synarthrosis or Amphiarthrosis

Front 12

True or false:
A fibrous joint has a cavity

Back 12

False

Front 13

3 types of fibrous joints

Back 13

Gomphoses
Suture
Syndesmosis

Front 14

Gomphoses

Back 14

teeth with mandible and maxilla
 Held in place by ligament

Front 15

Suture

Back 15

between bones of the skull
 Connected by dense regular CT

Front 16

Syndesmosis

Back 16

bones joined by long strands of connective tissue
 eg. between radius and ulna

Front 17

Cartilaginous Joints

Back 17

 Bones attached directly by cartilage
 No joint cavity

Front 18

Cartilaginous Joints
2 types

Back 18

Synchondrosis
Symphysis

Front 19

Synchondrosis

Back 19

bones joined by Hyaline cartilage
 All are Synarthrrosis.
 eg. ribs attach to sternum via costal cartilages

Front 20

Symphysis

Back 20

pad ofFibocartilage between articulating bones
 All are Amphiarthrosis.

Front 21

Are Synovial Joints...
Synarthrosis
Amphiarthrosis or
Diarthrosis

Back 21

Diarthrosis

Front 22

Structure of Synovial Joint

Back 22

Articular Capsule
Joint Cavity
Synovial Fluid
Articular Cartilage
Ligaments, nerves and Blood vessels

Front 23

Articular Capsule of the Synovial Joint

Back 23

double layer surrounding entire joint
 Outer fibrous layer strengthens joint
 Inner synovial membrane secretes viscous, oily fluid

Front 24

Joint Cavity of the Synovial Joint

Back 24

physical space separating two articulating bones
 filled with synovial fluid

Front 25

Synovial Fluid
three functions:

Back 25

Lubricate
shock absorber
nourish

Front 26

Articular Cartilage of the Synovial Joint

Back 26

line surfaces of articulating bones
 Prevents bone to bone contact

Front 27

Ligaments, nerves and Blood vessels of the Synovial Joint

Back 27

 Provide strength, detect pain, nourish

Front 28

Bursae

Back 28

saclike structure on outside of most synovial membranes
o Filled with synovial fluid
o Alleviate friction .

Front 29

Tendon Sheaths

Back 29

elongated burse wrapping around a tendon
o Reduce friction .
o particularly in confined areas (wrist and ankle)

Front 30

Fat Pads

Back 30

often on periphery of joint
o “ packing material”
o Fill spaces when bones move