$$\text{Bone Formation} = \text{Bone Resorption}$$

$$\text{Bone} \rightarrow \text{Ca}^{2+} + \text{PO}_4$$^{3-}$$

Question 1

Which of the following statements best describes the function of hyaline cartilage in the skeletal system?

Accepted Answer

It forms the articular surfaces of bones, reducing friction and serving as a model for bone growth.

Question 2

During endochondral ossification, which sequence correctly describes the transformation of cartilage to bone?

Accepted Answer

Chondrocytes divide, cartilage model grows, primary ossification center forms, osteoblasts secrete osteoid, secondary ossification centers form.

Question 3

Which type of bone cell is responsible for bone resorption and what substance does it secrete to accomplish this?

Accepted Answer

Osteoclasts; secrete HCl

Question 4

A patient presents with brittle bones and decreased bone density. Which age-related change most likely contributes to this condition?

Accepted Answer

Decreased calcium and mineral content in bone

Question 5

Which equation best represents the relationship between bone formation and resorption during adulthood?

Accepted Answer

$$	ext{Bone Formation} = 	ext{Bone Resorption}$$

Question 6

Which structure in compact bone contains blood vessels, lymphatics, and nerves?

Accepted Answer

Central (Haversian) canal

Question 7

Which type of bone is classified as flat and curved, and can be found in the cranial region?

Accepted Answer

Flat bone

Question 8

A child is diagnosed with a growth disorder affecting the epiphyseal plate. Which process is most directly impacted?

Accepted Answer

Interstitial growth (increase in bone length)

Question 9

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

Accepted Answer

They connect adjacent lacunae, allowing communication between osteocytes.

Question 10

Which bone cell type is responsible for building new bone and secreting osteoid?

Accepted Answer

Osteoblasts

Question 11

Which of the following is a function of yellow bone marrow?

Accepted Answer

Storage of triglycerides

Question 12

Which type of cartilage is found in the intervertebral discs and acts as a shock absorber?

Accepted Answer

Fibrocartilage

Question 13

Which anatomical feature of a long bone is primarily responsible for storage of yellow bone marrow?

Accepted Answer

Diaphysis

Question 14

Which process is described by the equation $$	ext{Osteoblasts} ightarrow 	ext{Osteocytes}$$?

Accepted Answer

Osteoblasts become trapped in lacunae and differentiate into osteocytes.

Question 15

Which bone covering contains osteogenic cells and is attached to bone via perforating fibers?

Accepted Answer

Periosteum

Question 16

A patient with osteoporosis is most likely to have which of the following changes in bone tissue?

Accepted Answer

Decreased bone density due to increased bone resorption

Question 17

Which of the following best describes the difference between compact bone and spongy bone?

Accepted Answer

Compact bone contains osteons, while spongy bone is composed of trabeculae.

Question 18

Which equation best represents the mineral storage function of bone?

Accepted Answer

$$	ext{Bone} ightarrow 	ext{Ca}^{2+} + 	ext{PO}_4$$^{3-}$$

Question 19

Which of the following is a correct statement about bone remodeling?

Accepted Answer

It maintains calcium and phosphate levels and is regulated by both stress and hormones.

Question 20

Which bone cell type is derived from osteoprogenitor cells and is responsible for secreting osteoid?

Accepted Answer

Osteoblasts

Bone and Cartilage Tissue: Structure, Function, and Development

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