Chapter 9 Introduction To Articulations

Front 1

Joint Structures

Back 1

Determine direction and range of motion.
Joint strength decreases as mobility increases.

Front 2

Whats the two methods of classification of joints?

Back 2

Functional and Structural

Front 3

Whats the method of Functional?

Back 3

range (and plane) of motion of joint

Front 4

Whats the method of Structural?

Back 4

anatomical organization

Front 5

Whats the functional classifications

Back 5

Synarthrosis
Amphiarthrosis
Diarthrosis

Front 6

Whats the structural classifications?

Back 6

Bony
Fibrous
Cartilaginous
Synovial

Front 7

Synarthrosis

Back 7

Immovable joint

Front 8

The following functions of Synarthrosis EXCEPT

Back 8

A. Little movement
B. Fibrous (dense CT Proper, collagen fibers)
C. Carilaginous (hyline)
D. Bones may fuse

Front 9

Amphiarthrosis

Back 9

Slightly movable joint

Front 10

The following functions of Amphiarthrosis EXCEPT?

Back 10

A. Little Movement
B. Fibrous Connections
C.Bony
D. Cartilaginous Connections

Front 11

Diathrosis

Back 11

(Freely movable joints)

Front 12

Whats the classification of Diarthrosis?

Back 12

Also called Synovial Joints
Subdivided by type (and plane) of motion

Front 13

Synarthroses

Back 13

(immovable joints)

Front 14

Whats the classification of Synarthroses?

Back 14

Very strong
Edges touch or interlock

Front 15

Whats three classifications of Synarthrotic Joints?

Back 15

Fibrous, Cartilaginous, and Bony Fusion

Front 16

Synarthrotic Joint of Fibrous "Suture"

Back 16

Bones interlocked
Bones Interlocked
Dense fibrous connective tissue
Found only in Skull (Coronal and Sagittal sutures)

Front 17

Whats the Synarthrotic Joint Classification of Gomphosis?

Back 17

Fibrous Connection (periodontal ligament)
Binds teeth to sockets in gums

Front 18

Whats the Synarthoric Joint Classification of Bony Fusion

Back 18

Fused Bones, immovable:
- epiphyseal lines of long bones

Front 19

Whats the Synarthroic Joint Classification of Carilaginous?

Back 19

Carilaginous
Epiphyseal carilage of long bones
Between vertebrosternal ribs and sternum

Front 20

Amphiarthrotic Joints

Back 20

More movable, and stronger than freely movable joint

Front 21

Diathrosis

Back 21

(Freely movable joints)

Front 22

Whats the classification of Diarthrosis?

Back 22

Also called Synovial Joints
Subdivided by type (and plane) of motion

Front 23

Synarthroses

Back 23

(immovable joints)

Front 24

Whats the classification of Synarthroses?

Back 24

Very strong
Edges touch or interlock

Front 25

Whats three classifications of Synarthrotic Joints?

Back 25

Fibrous, Cartilaginous, and Bony Fusion

Front 26

Synarthrotic Joint of Fibrous "Suture"

Back 26

Bones interlocked
Bones Interlocked
Dense fibrous connective tissue
Found only in Skull (Coronal and Sagittal sutures)

Front 27

Whats the Synarthrotic Joint Classification of Gomphosis?

Back 27

Fibrous Connection (periodontal ligament)
Binds teeth to sockets in gums

Front 28

Whats the Synarthoric Joint Classification of Bony Fusion

Back 28

Fused Bones, immovable:
- epiphyseal lines of long bones

Front 29

Whats the Synarthroic Joint Classification of Carilaginous?

Back 29

Carilaginous
Epiphyseal carilage of long bones
Between vertebrosternal ribs and sternum

Front 30

Amphiarthrotic Joints

Back 30

More movable
Stronger than freely movable join

Front 31

Amphiarthrotic Joints (fibrous)

Back 31

Syndesmosis:
- Bones connected by ligaments
>> Inferior tibiofibular

Front 32

Amphiarthrotic Joints (Cartliaginous)

Back 32

Separated by fibrous cartilage (Fibrocartilage)
>> Between bodies of vertebrae

Front 33

Diarthroses (Synovial Joints)

Back 33

Movable Joints
Ends of long bones
Within articular capsules
Lined with synovial membrane

Front 34

Components of Synovial Joints (Articular Cartilage)

Back 34

Pad surfaces within capsules:
--- Prevent bones from touching

Front 35

Components of Synovial Joints (Synovial Fluid)

Back 35

Secreted by fibroblasts
Provides:
- lubrication to reduce friction
- shock absorption
- nutrients

Front 36

Componts of Synovial Joints

Back 36

Cartilages, Ligaments, Tendons, Bursae

Front 37

Synovial Joint Component (Cartilages)

Back 37

Cushion
>> Fibrous cartilage pad called a menscus (articular disc)

Front 38

Synovial Joint Componet (Tendons)

Back 38

Attach bones to muscles around joint
to support

Front 39

Synovial Joint Component (Bursae)

Back 39

Sacs filled with synovial fluid
between tendon/ligaments and bone points of friction between structures

Front 40

Factors Stabilize Joints

Back 40

By limiting motion

Front 41

Prevent Injury by Limiting Motion of Synovial Joints?

Back 41

Collagen fibers (joint capsul, ligaments)
Surfaces menisci
bones, muscles
tendons

Front 42

Joint Injuries for (dislocation)

Back 42

Dislocation (luxation)
>> Articulationg surfaces forced out of position
>> Damages cartilage, ligaments, joint capsule

Front 43

Whats the two factors of joint injuries?

Back 43

Dislocation (luxation) and Subluxation

Front 44

Joint Injuries for (Subluxation)

Back 44

Partial dislocation

Front 45

Whats the three types of motion of Synovial Movements?

Back 45

Linear (gliding)
Angular
Rotation

Front 46

Whats the Planes (axis) of Synovial Moevements?

Back 46

MONaxial
BIaxial
TRIaxial

Front 47

Whats Synovial Movements for Linear motion?

Back 47

gliding
surface slide
> between carpal or tarsal bones

Front 48

Synovial Movements (Angular Motion)

Back 48

Flexion
>> Reduces angle
Extension
>> increases angle
Hyperextension
>> Extension past anatomical position

Front 49

Synovial Movements (angular Motion)

Back 49

Frontal Plane
Abduction--away
Adduction--toward
Circumduction--Circular without rotation

Front 50

Synovial Movements (Rotation)

Back 50

Medial (inward)
> toward axis
Lateral (outward)
> away from axis
Pronation
> radius rotates over ulna
Supination
> up