Question 1

Which of the following best describes the process of endochondral ossification during bone development?

Accepted Answer

Bone replaces a pre-existing cartilage model, beginning with osteoblasts secreting osteoid.

Question 2

Which type of bone cell is responsible for breaking down bone matrix during bone remodeling?

Accepted Answer

Osteoclasts

Question 3

A fracture in the shaft of a long bone would be a break in the:

Accepted Answer

Diaphysis

Question 4

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

Accepted Answer

Communication

Question 5

Which of the following bone cell types is primarily responsible for initiating ossification of bone and producing the osteoid matrix?

Accepted Answer

Osteoblasts

Question 6

During childhood, which hormone is most important for stimulating epiphyseal plate activity and bone growth?

Accepted Answer

Growth hormone

Question 7

Which of the following correctly matches the bone type with its description?

Accepted Answer

Short bones: cube-shaped, such as carpals

Question 8

Which structure covers the outer surface of compact bone and contains osteogenic stem cells?

Accepted Answer

Periosteum

Question 9

Red bone marrow is the site of __________ cell formation.

Accepted Answer

Hematopoietic

Question 10

Which of the following best describes the difference between organic and inorganic components of bone?

Accepted Answer

Organic matter is found in osteoid; inorganic matter is primarily calcium phosphate.

Question 11

Which canal runs through the core of the osteon and contains blood vessels and nerves?

Accepted Answer

Central canal

Question 12

Which of the following bone markings is a site of muscle, ligament, or tendon attachment?

Accepted Answer

Projection

Question 13

Which zone of the epiphyseal plate is characterized by chondrocytes dividing rapidly, increasing the length of the bone?

Accepted Answer

Proliferation (growth) zone

Question 14

Which process allows long bones to grow in thickness (diameter) during postnatal growth?

Accepted Answer

Appositional growth

Question 15

Which of the following is a function of osteocytes in bone tissue?

Accepted Answer

Act as stress or strain sensors

Question 16

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

Accepted Answer

$$Ca_5$$($$PO_4)_3OH$

Question 17

Which of the following statements about spongy bone is correct?

Accepted Answer

Spongy bone contains trabeculae that align along lines of stress.

Question 18

Which of the following best describes the role of the endosteum?

Accepted Answer

Lines the inner surface of the compact bone and contains osteogenic cells

Question 19

During puberty, which hormones promote a growth spurt and ultimately lead to closure of the epiphyseal plate?

Accepted Answer

Testosterone and estrogen

Question 20

Which of the following best describes the function of the nutrient foramen in long bones?

Accepted Answer

Allows passage of blood vessels and nerve fibers into the bone

Skeletal System: Structure, Function, and Bone Development

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