Question 1

Which of the following is NOT a primary function of bone tissue in the human body?

Accepted Answer

Generation of electrical impulses for muscle contraction

Question 2

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

Accepted Answer

Femur

Question 3

Which of the following best describes the structure and function of osteons in compact bone?

Accepted Answer

Osteons are concentric rings of bone matrix that surround a central canal containing blood vessels and nerves

Question 4

A 12-year-old child is experiencing rapid growth in height. Which region of the long bone is primarily responsible for this longitudinal growth?

Accepted Answer

Epiphyseal plate

Question 5

Which of the following equations correctly represents the relationship between bone mass, bone deposition, and bone resorption over time?

Accepted Answer

$$\Delta M = D - R$$

Question 6

A patient with osteoporosis is at increased risk for fractures because:

Accepted Answer

Bone resorption outpaces bone deposition, leading to decreased bone density

Question 7

Which hormone is most important for stimulating epiphyseal plate activity in infancy and childhood?

Accepted Answer

Growth hormone

Question 8

During bone repair, which stage is characterized by the formation of a fibrocartilaginous callus?

Accepted Answer

Soft callus formation

Question 9

Which of the following best explains why bones thicken in response to increased muscle activity or added weight?

Accepted Answer

Mechanical stress stimulates osteoblasts to secrete bone matrix on external bone surfaces

Question 10

A 55-year-old woman is diagnosed with Paget's disease. Which of the following best describes the underlying pathology?

Accepted Answer

Excessive and haphazard bone deposit and resorption cause bone to be made fast and poorly

Question 11

Which of the following statements about the periosteum is TRUE?

Accepted Answer

It contains osteogenic cells that can differentiate into other bone cells

Question 12

Which of the following is a correct sequence of events in endochondral ossification?

Accepted Answer

Formation of bone collar, cavitation of hyaline cartilage, invasion of internal cavities by periosteal bud, formation of medullary cavity

Question 13

A patient with a parathyroid tumor is experiencing hypercalcemia. Which of the following best explains the effect of parathyroid hormone (PTH) on bone?

Accepted Answer

PTH stimulates osteoclasts to resorb bone, releasing calcium into the blood

Question 14

Which of the following best describes the role of canaliculi in compact bone?

Accepted Answer

They allow osteocytes to communicate and exchange nutrients via cytoplasmic extensions

Question 15

Which of the following is a distinguishing feature of synovial joints compared to fibrous and cartilaginous joints?

Accepted Answer

Presence of a fluid-filled joint cavity

Question 16

A 45-year-old man presents with pain and swelling at the base of his great toe. Laboratory tests reveal elevated uric acid levels. Which joint disorder is most likely?

Accepted Answer

Gouty arthritis

Question 17

Which of the following best explains why the diaphysis of long bones is thickest where bending stresses are greatest?

Accepted Answer

Bone adapts to mechanical stress by increasing thickness in areas of greatest load

Question 18

Which of the following cell types is responsible for bone resorption?

Accepted Answer

Osteoclasts

Question 19

A 30-year-old woman has a fracture that is classified as 'open.' What does this mean?

Accepted Answer

The bone ends penetrate the skin

Question 20

Which of the following best describes the chemical composition of bone matrix?

Accepted Answer

It is composed of both organic components (such as collagen) and inorganic components (such as hydroxyapatite)

Osseous Tissue & the Skeletal System: Structure, Function, and Disorders

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