$$\text{Bone Matrix} = \frac{2}{3} \text{Calcium Phosphate (hydroxyapatite)} + \frac{1}{3} \text{Collagen Fibers}$$

Question 1

Which of the following is NOT a major function of the skeletal system?

Accepted Answer

Regulation of blood glucose levels

Question 2

A patient suffers a fracture in a bone that is classified as 'irregular.' Which of the following bones is most likely affected?

Accepted Answer

Vertebra

Question 3

Which bone marking is most likely to be found at the site of a tendon attachment and is typically rough and prominent?

Accepted Answer

Trochanter

Question 4

Which of the following best describes the functional significance of foramina in bones?

Accepted Answer

They provide passageways for nerves and blood vessels.

Question 5

A long bone is fractured at the diaphysis. Which region of the bone is affected?

Accepted Answer

The shaft

Question 6

Which of the following statements about compact and spongy bone is correct?

Accepted Answer

Compact bone is organized into osteons, while spongy bone is organized into trabeculae.

Question 7

Which cell type is responsible for the production of new bone matrix and becomes an osteocyte when completely surrounded by matrix?

Accepted Answer

Osteoblast

Question 8

A patient with a genetic defect in collagen synthesis would most likely have bones that are:

Accepted Answer

Brittle and prone to fracture

Question 9

Which of the following equations best represents the composition of the bone matrix?

Accepted Answer

$$	ext{Bone Matrix} = \frac{2}{3} 	ext{Calcium Phosphate (hydroxyapatite)} + \frac{1}{3} 	ext{Collagen Fibers}$$

Question 10

Which bone cell type is primarily responsible for bone resorption and the release of stored minerals?

Accepted Answer

Osteoclast

Question 11

A patient with a deficiency in osteogenic cells would most likely experience which of the following?

Accepted Answer

Impaired fracture repair

Question 12

Which of the following best explains why a bone lacking a calcified matrix is very flexible?

Accepted Answer

The absence of hydroxyapatite crystals means the bone cannot resist compression.

Question 13

Which of the following bone markings would most likely be found at the site of a nerve or blood vessel passage?

Accepted Answer

Foramen

Question 14

Which of the following is a correct pairing of bone cell and its function?

Accepted Answer

Osteocyte: Maintains the protein and mineral content of the matrix

Question 15

A patient presents with a bone tumor that is producing excessive osteoid but little mineralization. Which cell type is most likely overactive?

Accepted Answer

Osteoblast

Question 16

Which of the following best describes the periosteum?

Accepted Answer

A layer covering the outer surfaces of bones, except at joints, consisting of fibrous and cellular layers

Question 17

Which of the following scenarios best illustrates the functional significance of a rough, prominent bone marking?

Accepted Answer

A sprinter develops a larger tibial tuberosity due to repeated muscle contractions during training.

Question 18

Which of the following best explains why compact bone is more suitable for weight-bearing than spongy bone?

Accepted Answer

Compact bone is densely organized into osteons, providing greater strength and resistance to compression.

Question 19

Which of the following is the correct sequence of differentiation for bone cells during bone repair?

Accepted Answer

Osteogenic cell → Osteoblast → Osteocyte

Question 20

A patient with excessive osteoclast activity would most likely develop which of the following conditions?

Accepted Answer

Osteoporosis

Bones and Bone Structure: Study Notes for Anatomy & Physiology

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