Test Revision - Joint Types

Question 1

What is the effect of a loosely fitted joint?

Answer 1

Great range of movement but are weaker/prone to dislocation

Question 2

What is the effect of a tightly fitted joint?

Answer 2

Strong joint, generally very little movement

Question 3

How are joints classified?

Answer 3

1. Functional Classification: Range of movement
2. Structural Classification: Type of connective tissue that binds the bones together

Question 4

What are the types of joints?

Answer 4

1. Fibrous/fixed joints
2. Cartilaginous/Slightly movable joints

Question 5

What is a fibrous joint?

Answer 5

When no movement occurs between the bones because they’re held in place by fibrous connective tissue
- Very difficult to damage as it’s strong

Question 6

Example of fibrous joint

Answer 6

• Between teeth and jaw
• Sutures of the skull

Question 7

What is a cartilaginous joint?

Answer 7

Held in place by cartilage which allows slight movement to occur

Question 8

Example of cartilaginous joint

Answer 8

• Joints between adjacent vertebrae
• Joints between the ribs

Question 9

What is a synovial joint?

Answer 9

Joints that are freely movable, with the amount of movement limited by ligaments, muscles, tendons and adjoining bones.

Question 10

Example synovial joint

Answer 10

The knee joint where the femur meets the tibia

Question 11

What is a ball & socket joint?

Answer 11

When spherical head of one bone fits into a cup-like cavity of another.

Question 12

What is a hinge joint?

Answer 12

Allow movement in one plane only. Convex surface fits into concave surface.

Question 13

What is a pivot joint?

Answer 13

Rounded, pointed, conical end of bone articulates with a ring, formed partly by bone and ligament

Question 14

What is a gliding joint?

Answer 14

Movement in any direction side to side/ back to forth motion, restricted only by ligaments or bony processes surrounding joint.

Question 15

What is a condyloid joint?

Answer 15

One surface of bone slightly convex that fits into slightly concave depression in another.

Question 16

Provide an example of the ball & socket joint

Answer 16

Head of humerus fits into depression in scapula

Question 17

Provide an example of the hinge joint

Answer 17

Elbow and knee

Question 18

Provide an example of the pivot joint

Answer 18

Joint between 1st vertebra. Head is balanced (atlas) and 2nd vertebra (axis)

Question 19

Provide an example of the gliding joint

Answer 19

Between carpal bones

Question 20

Provide an example of the condyloid joint

Answer 20

Between radius and carpal bones