Question 1

Which of the following best describes a long bone?

Accepted Answer

A bone that is longer than it is wide, such as the femur.

Question 2

Which function of the skeletal system is most directly related to the process of hematopoiesis?

Accepted Answer

Blood cell formation in red bone marrow

Question 3

The periosteum is essential for bone health because it:

Accepted Answer

Provides a dense irregular connective tissue layer for protection and repair

Question 4

Which equation correctly represents the major mineral component of bone matrix?

Accepted Answer

$$Ca_{10}(PO_4$)_6(OH)_2$$

Question 5

Osteoclasts are responsible for which process in bone tissue?

Accepted Answer

Bone resorption

Question 6

A patient with a decrease of 35% in blood calcium is most likely to experience which symptom?

Accepted Answer

Convulsions

Question 7

Which hormone stimulates osteoclast activity and increases blood calcium levels?

Accepted Answer

Parathyroid hormone (PTH)

Question 8

During endochondral ossification, what is the role of the primary ossification center?

Accepted Answer

It is where bone tissue replaces cartilage in the diaphysis.

Question 9

Which structure allows osteocytes to communicate and exchange nutrients within compact bone?

Accepted Answer

Canaliculi

Question 10

A greenstick fracture is best described as:

Accepted Answer

An incomplete fracture where one side of the bone bends and cracks

Question 11

Which of the following best explains why compact bone is stronger than spongy bone?

Accepted Answer

The lamellae in compact bone are arranged in concentric circles around a central canal.

Question 12

Which vessel provides blood supply to the developing bone and the epiphyseal cartilage during growth?

Accepted Answer

Metaphyseal vessel

Question 13

What is the primary function of the epiphyseal plate in a growing long bone?

Accepted Answer

To allow for lengthwise growth of the bone

Question 14

Which process is most directly responsible for the repair of a bone fracture?

Accepted Answer

Fibrocartilaginous callus formation

Question 15

Which vitamin is essential for osteoblast differentiation and bone matrix synthesis?

Accepted Answer

Vitamin C

Question 16

If a person’s parathyroid hormone (PTH) levels are abnormally high, which of the following is most likely to occur?

Accepted Answer

Increased bone resorption and elevated blood calcium

Question 17

Which of the following best describes the function of lamellae in compact bone?

Accepted Answer

They contain collagen fibers that run at angles to add strength and resilience.

Question 18

Which type of bone cell is responsible for secreting the organic components of the bone matrix?

Accepted Answer

Osteoblast

Question 19

A patient with osteoporosis is most likely to have a deficiency in which of the following?

Accepted Answer

Calcium and vitamin D

Question 20

Which of the following equations best represents the relationship between bone mass and exercise?

Accepted Answer

$$\Delta M_{bone} = k 	imes F_{exercise}$$

Comprehensive Study Notes: Bone Structure, Function, and Physiology

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