Skeletal System

Question 1

What are the main functions of the skeletal system?

Answer 1

Provides support, protection, movement, mineral storage, and blood cell production.

Question 2

What are the two main parts of the skeleton?

Answer 2

Axial skeleton: Skull, vertebral column, rib cage.
Appendicular skeleton: Limbs, shoulder girdle, pelvic girdle.

Question 3

What are the types of bones and examples?

Answer 3

Long bones: Femur, humerus.
Short bones: Carpals, tarsals.
Flat bones: Skull, ribs.
Irregular bones: Vertebrae.
Sesamoid bones: Patella.

Question 4

What is the function of cartilage?

Answer 4

Cartilage provides flexibility, reduces friction, and absorbs shock in joints.

Question 5

What is osteoporosis?

Answer 5

A condition where bones become weak and brittle due to loss of bone density, increasing the risk of fractures.

Question 6

What are synovial joints?

Answer 6

Freely movable joints surrounded by a capsule and filled with synovial fluid for smooth movement (e.g., knee, shoulder).

Example: knee, shoulder.