Q: Which equation best represents the process of appositional growth in cartilage?

$\text{New matrix} = \text{Matrix}_{\text{existing}} + \text{Matrix}_{\text{perichondrium}}$

Q: Which equation represents the mineral composition of bone, specifically hydroxyapatite?

$\text{Hydroxyapatite} = Ca_{10}(PO_4)_6(OH)_2$

Question 1

Which type of cartilage is most abundant in the human body and provides support, flexibility, and resilience?

Accepted Answer

Hyaline cartilage

Question 2

A patient presents with pain in the knee after a sports injury. Imaging reveals damage to the meniscus. Which type of cartilage is most likely affected?

Accepted Answer

Fibrocartilage

Question 3

Which of the following statements about the perichondrium is correct?

Accepted Answer

It is a layer of dense connective tissue that surrounds cartilage and contains blood vessels for nutrient delivery.

Question 4

Which equation best represents the process of appositional growth in cartilage?

Accepted Answer

$	ext{New matrix} = 	ext{Matrix}_{	ext{existing}} + 	ext{Matrix}_{	ext{perichondrium}}$

Question 5

Which of the following is NOT a function of bone?

Accepted Answer

Production of synovial fluid

Question 6

A long bone is characterized by which of the following features?

Accepted Answer

It has a shaft (diaphysis) and two ends (epiphyses).

Question 7

Which bone cell type is responsible for bone resorption and is derived from hematopoietic stem cells?

Accepted Answer

Osteoclasts

Question 8

Which of the following best describes the role of osteocytes?

Accepted Answer

They are mature bone cells that act as stress or strain sensors.

Question 9

Which equation represents the mineral composition of bone, specifically hydroxyapatite?

Accepted Answer

$	ext{Hydroxyapatite} = Ca_{10}(PO_4)_6(OH)_2$

Question 10

A patient with osteoporosis is prescribed bisphosphonates. What is the primary mechanism of action of this drug?

Accepted Answer

Decrease osteoclast activity and bone resorption

Question 11

Which hormone is released in response to low blood calcium levels and stimulates osteoclasts to resorb bone?

Accepted Answer

Parathyroid hormone (PTH)

Question 12

According to Wolff's law, which of the following best explains why weightlifters have thicker bones at muscle attachment sites?

Accepted Answer

Bone remodeling occurs in response to mechanical stress, increasing bone mass where stress is greatest.

Question 13

Which of the following is a correct sequence of events in the healing of a bone fracture?

Accepted Answer

Hematoma forms, fibrocartilaginous callus forms, bony callus forms, bone remodeling occurs

Question 14

Which bone disorder is characterized by excessive and haphazard bone deposit and resorption, resulting in poorly developed bone?

Accepted Answer

Paget's disease

Question 15

Which of the following best describes the difference between appositional and interstitial growth in cartilage?

Accepted Answer

Appositional growth adds new matrix on the surface, while interstitial growth expands cartilage from within.

Question 16

Which of the following bone markings is a site for muscle and ligament attachment?

Accepted Answer

Projection

Question 17

A child presents with bowed legs and enlarged bone ends. Which condition is most likely responsible, and what is the underlying cause?

Accepted Answer

Rickets due to insufficient dietary calcium or vitamin D

Question 18

Which equation best represents the relationship between bone mass and calcium homeostasis?

Accepted Answer

$	ext{Bone mass} = 	ext{Bone formation} - 	ext{Bone resorption}$

Question 19

Which of the following is true regarding the location of red bone marrow in adults?

Accepted Answer

It is located primarily in the heads of the femur and humerus, and in the diploë of flat bones.

Bones and Skeletal Tissues: Structure, Types, and Functions

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