Musculoskeletal System - Skeleton

Question 1

List the functions of the skeleton.

Answer 1

• protection of vital organs
• movement
• RBC production
• storage of mineral salts and fats
• support

Question 2

Where is periosteum found and how would you describe it?

Answer 2

Periosteum is found on the outer surface of the bone. It is a dense, white, fibrous covering.

Question 3

Why is bone classified as connective tissue?

Answer 3

Connective tissues consist of cells separated from each other by large amounts of non-cellular material called matrix. In bone, inorganic salts are deposited in the matrix, increasing the rigidity and straight, thus making it the hardest of the connective tissues.

Question 4

What does compact bone consist of?

Answer 4

Osteons or Haversian systems

Question 5

Name the 2 types of skeletons and what hey are comprised of.

Answer 5

Axial - consists of the nervous system and rib cage

Appendicular - the limbs (arms and legs)

Question 6

What is a joint?

Answer 6

The site at which 2 or more bones come together

Question 7

List the joints.

Answer 7

• Fixed/fibrous
• cartilaginous/ slightly moveable
• synovial/freely moveable (b/s, hinge, pivot, gliding, condyloid)

Question 8

Why are freely moveable joints also called synovial joints?

Answer 8

Because there is a synovial cavity between the articulating surfaces of the bones.

Question 9

What is osteoporosis?

Answer 9

When the loss of bone mass becomes sufficient to impair normal functioning (caused by ageing)

Question 10

How do we prevent osteoporosis?

Answer 10

• we need an adequate calcium intake
• vitamin D
• exercise