Chapter 3

Question 1

Compare and describe the cortical and cancellous bone

Answer 1

Cortical bone is the dense outershell, while the cancellous bone is that spongious bone encased by the cortical bone

Question 2

How does osteoblastic and osteoclastic activity generate bone?

Answer 2

New bone is generated when osteoblastic activity occurs, while osteoblastic activity breaks down old bone. This reformation is in response to the stresses applied to it (wolffs law)

Question 3

Axial skeleton

Answer 3

It contains the bones of the head that protects the central nervous system

Question 4

Appendicular skeleton

Answer 4

It is comprised of the bones that make up the shoulder, upper extremities, pelvis, and lower extreme at ease.

Question 5

Epiphysis

Answer 5

It is part of a long bone from which bone growth occurs

Question 6

Diaphysis

Answer 6

It is the shaft of the long bone

Question 7

Metaphysis

Answer 7

It is the growing portion of a bone that is located between diaphysis and epiphysis

Question 8

Osteoblast

Answer 8

Created or builds bone

Question 9

Osteoclast

Answer 9

It destroys bone

Question 10

Wolffs law

Answer 10

Bone reformation occurs in response to the stresses that is placed on it

Question 11

Periosteum

Answer 11

It is a layer of connective tissue that envelops all bones, and is highly vascular, provide blood supply to the bone

Question 12

What are the two functions of a skeleton?

Answer 12

It is a reservoir for important inorganic elements including calcium and magnesium that is released or absorbed to maintain homeostasis and it provides structural support