Question 1

Which of the following best describes the main function of hyaline cartilage in the human skeleton?

Accepted Answer

Offers support with some flexibility and is the most abundant cartilage type

Question 2

Which process is responsible for the increase in length of long bones during childhood and adolescence?

Accepted Answer

Interstitial growth at the epiphyseal plate

Question 3

A patient suffers a bone fracture. Which of the following sequences correctly describes the stages of bone repair?

Accepted Answer

Hematoma formation → Fibrocartilaginous callus formation → Bony callus formation → Bone remodeling

Question 4

Which of the following is a distinguishing feature of compact bone compared to spongy bone?

Accepted Answer

Osteons (Haversian systems) as the structural unit

Question 5

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

Accepted Answer

Growth hormone

Question 6

Which of the following best explains why bone is considered a dynamic tissue?

Accepted Answer

It constantly remodels in response to mechanical forces and metabolic needs

Question 7

Which of the following equations correctly represents the chemical composition of hydroxyapatite, the main inorganic component of bone?

Accepted Answer

$$ \mathrm{Ca_5$(PO_4$)_3OH} $$

Question 8

A child with a deficiency in thyroid hormone during development is most likely to experience which of the following?

Accepted Answer

Impaired skeletal growth and abnormal proportions

Question 9

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

Accepted Answer

Osteoclasts

Question 10

Which of the following best describes the process of intramembranous ossification?

Accepted Answer

Bone replaces fibrous connective tissue membranes formed by mesenchymal cells

Question 11

Which of the following is a function of the periosteum?

Accepted Answer

Covers the external surface of compact bone and contains osteogenic cells

Question 12

Which of the following statements about bone remodeling is correct?

Accepted Answer

Bone remodeling consists of both bone deposit by osteoblasts and bone resorption by osteoclasts

Question 13

A 25-year-old athlete increases muscle activity and weight-bearing exercise. Which process will primarily contribute to the thickening of his bones?

Accepted Answer

Appositional growth at the periosteum

Question 14

Which of the following best describes the orientation of collagen fibers in successive lamellae of an osteon?

Accepted Answer

Collagen fibers run in opposite directions in adjacent lamellae

Question 15

Which of the following is NOT a function of bone tissue?

Accepted Answer

Synthesis of vitamin D

Question 16

Which of the following best explains why spongy bone is arranged along lines of stress?

Accepted Answer

To resist compression and tension from multiple directions

Question 17

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

Accepted Answer

Formation of bone collar → Development of primary ossification center → Invasion of periosteal bud → Formation of medullary cavity → Secondary ossification centers

Question 18

Which of the following best describes the role of osteocytes in bone tissue?

Accepted Answer

Maintain the bone matrix and act as stress sensors

Question 19

Which of the following is a correct statement about the epiphyseal plate?

Accepted Answer

It is composed of hyaline cartilage and allows for bone lengthening

Question 20

Which of the following best explains the effect of parathyroid hormone (PTH) on bone remodeling?

Accepted Answer

PTH stimulates osteoclasts to resorb bone, increasing blood calcium levels

Bones and Skeletal Tissues: Structure, Function, and Development

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