Synovial Joint / Joint Stability

Question 1

How many types of Synovial Joints ?

Answer 1

6

Question 2

What are the six Synovial Joints ?

Answer 2

Gliding
Condyloid
Ball and Socket
Saddle
Pivot
Hinge

Question 3

Basic Structure of Synovial Joint ?

Answer 3

Joint Capsule
Ligaments
Synovial Fluid / Bursa
Articular Cartilage
Synovial Fluid
Tendons

Question 4

Functions of Articular Cartilage?

Answer 4

Articular Cartilage absorbs shock and allows for friction-free movement its made of smooth tissue and covers the surface of articulating bones

Question 5

Functions of Joint Capsule?

Answer 5

This Feature encloses & strengthens the joint the membrane secrets synovial fluid

Question 6

Functions of Synovial fluid ?

Answer 6

This feature reduces friction and nourishes articular cartilage

Question 7

Functions of tendon

Answer 7

this feature connects muscle to bone

Question 8

Example of Hinge Joints

Answer 8

Elbow , Knee , Ankle

Question 9

Example of Pivot Joints

Answer 9

Between the C1 and C2 vertebrae

Question 10

Example of Saddle Joints

Answer 10

between the trapezium carpal bone and 1st metacarpal bone

Question 11

Example of Ball and Socket Joints

Answer 11

Shoulder and Hips

Question 12

Example of Condyloid Joints

Answer 12

Wrist (between the radius and carpels bones)

Question 13

Example of Plane Joints

Answer 13

Between tarsal bone

Question 14

What dose Sprain refer to

Answer 14

damaged ligament over stretched never returns to original length

Question 15

What does strain refer to

Answer 15

damage tendon or muscles

Question 16

Ways physical activity can improve joint stability ?

Answer 16

•Increased strength of ligaments

•Increased length & elasticity of ligaments

•Increase strength of tendons

•Increased strength of muscles crossing the joint

•Increased muscle tone/muscle hypertrophy

•Articular cartilage thickens protecting the joint

Question 17

two physiological factors that affect joint stability

Answer 17

•Strength of ligaments

•Strength of tendons

•Size or strength of muscles crossing joint

•Depth or shape or type of joint

•Injury to connective tissue e.g. any muscle tears/ ligament/cartilage damage/tendonitis

Question 18

How many types of joints are in the human body

Answer 18

3

Question 19

What are the 3 types of joints

Answer 19

• Fibrous /Fixed Joint
• Synovial Joint
• Cartilaginous Joint

Question 20

What are the 3 main features of a Fibrous /Fixed Joint ?

Answer 20

• They allow no movement
• Important In allowing the skeleton to grow and develop (for example the cranium Fibrous faints are connected
by dense Connective tissue consisting
mainly of collagen).

• Fibrous Joints are called fixed’ or “immovable” joints because do not they move.

Question 21

Example of a Fibrous/Fixed Joint?

Answer 21

A joint Between cranal bones, syndemesmosis and between Certain Long bones e.g. The tibia and fibula or radius and ulna

Question 22

What is a Suture ?

Answer 22

An immovable junction between two bones, such as those of the skull.

Question 23

What are the main features of the Cartilaginous Joint ?

Answer 23

• Also know as a slightly moveable
• Joins bones together with cartilage only.
• Allows small movement usally in a number of different directions.

Question 24

Function of synovial joint ?

Answer 24

to prevent friction between the articulating bones of the joint cavity.