Types of Synovial Joints and Naming Motions Flashcards Preview

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Flashcards in Types of Synovial Joints and Naming Motions Deck (34):
1

What is structural classification of joints?

based on material binding the bones together and whether or not a joint cavity is present.

2

What are the 3 structural classification of joints?

1. Fibrous
2. Cartilaginous
3. Synovial

3

What is functional classification of joints?

based on the amount of movement allowed by the joint.

4

What are the three functional classes of joints?

1. Synarthroses
2. Amphiarthroses
3. Diarthroses

5

Synarthroses

Immovable

6

Amphiarthroses

Slightly movable

7

Diarthroses

Freely movable

8

1. Fibrous
2. Occurs between the bones of the skull
3. Comprised of interlocking junctions filled with thick and short dense irregular CT
4. Binds bones tightly together, but allows for growth during youth.
5. In middle age, many skull bones are fused and joints now called synostoses (without movement of bone)

Suture Joint

9

1. Fibrous
2. Bones are connected by a fibrous tissue ligament (dense regular CT)
3. Movement is slight to moderate (amphiarthrosis), dependent upon fiber length.
4. Ex: connection between the tibia and fibula and the radius and ulna.

Syndesmosis

10

1. Fibrous
2. only 1 - the in-peg socket fibrous joint between a tooth and its alveolar socket (synarthrosis)
3. The dense regular CT fibrous connection is referred to as the peiodontal ligament.

Gomphosis

11

1. Articulating bones are united by cartilage
2. There is no joint cavity, just a wedge.
3. Two types - synchondroses and symphyses

Cartilaginous Joints

12

1. A bar of plates of hylaiine cartilage unites the bones
2. All synchondroses are synarthrotic joints.
3. Ex include: epiphyseal plates of children and adolescents; joint between the costal cartilage of the first rib and the manubrium of the sternum

Synchondrosis

13

1. Hyaline cartilage covers the articulating surface of the bone and is fused to an intervening pad of fibrocartilage.
2. Slightly moveable (amphiarthrotic) joints designed for strength and flexibility.
3. Ex: Intervertebral joints and the pubic symphysis of pelvis

Symphysis

14

1. Joints in which the articulating bones are separated by a fluid-containing joint cavity.
2. All are freely moveable (diarthroses)
3. Ex: all limb joints, and most other joints of the body

Synovial

15

All of these types of Joints have the following General Structure
1. Articular cartilage (hyaline) at end of bone
2. Joint (synovial) cavity = small potential space
3. Articular capsule; outer fibrous capsule of dense irregular CT, inner "synovial membrane" of loose connective CT, plus serous membrane.
4. Synovial Fluid
5. Reinforcing Ligaments
6. Nerves and Blood Vessels

Synovial Joints

16

All of these types of Joints have these Associated Structures
1. Fat pads
2. Fibrocartilage discs.
3. Friction-Reducing Structures: Bursae and Tendon Sheaths

Synovial Joints

17

Slipping or gliding movements only

Nonaxial

18

Movement in one plane/axis of motion

Uniaxial

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Movement in two planes/axis of motion

Biaxial

20

Movement in/around all three planes

Multiaxial

21

One flat bone surface glides or slips over another similar surface

Gliding Movements

22

Bending movement that decreases the angle of the joint

Flexion

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Bending movement where increases angle of the joint

Extension

24

Movement beyond the normal range of motion

HyperExtension

25

Abduction

Movement away from the midline

26

Adduction

Movement towards the midline

27

The turning of bone around its own long axi

Right/Left Rotation between AA joint
Also Internal/External Rotation at hip and shoulder joints

28

movement descirbes a cone in space; occurs at ball and socket joints only
ex: shoulder and hip

Circumduction

29

Forearm palm up/palm down motion

Supination/pronation

30

Up and down movement of ankle joints

dorsiflexion/plantarflexion

31

Inversion/Eversion

subtalar joint (between talus and calcaneus) medial and lateral movement.

32

Scapula/mandible anterior/posterior movement

Protraction (hunched over)/retraction (boobs out)

33

Ex: Scapula/mandible superior/inferior movement

Elevation (close jaw; shrug shoulders)
Depression (opposite)

34

Touching of thumb to any other digit

Opposition