Question 1

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

Accepted Answer

Regulation of body temperature

Question 2

Which type of bone cell is responsible for bone resorption and plays a key role in mineral homeostasis?

Accepted Answer

Osteoclast

Question 3

During intramembranous ossification, which structure forms first?

Accepted Answer

Ossification center

Question 4

Which bone shape is best described as being found inside tendons near joints, such as the patella?

Accepted Answer

Sesamoid bone

Question 5

A patient suffers a fracture that exposes bone tissue. Which bone cell type is most likely to release chemicals that stimulate bone formation?

Accepted Answer

Osteocytes

Question 6

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

Accepted Answer

90% collagen and 10% sugar compounds

Question 7

What is the main difference between calcification and ossification?

Accepted Answer

Calcification involves only the deposition of calcium salts, while ossification includes the formation of new bone tissue.

Question 8

Which layer of bone contains osteoprogenitor cells and participates in bone growth and repair?

Accepted Answer

Periosteum

Question 9

A long bone is sectioned to reveal its internal structure. Which region contains yellow bone marrow in adults?

Accepted Answer

Medullary cavity

Question 10

Which of the following equations correctly represents the chemical formula for hydroxyapatite, the main mineral component of bone?

Accepted Answer

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

Question 11

Which bone cell type is derived from white blood cell lineage and is responsible for secreting acids and proteolytic enzymes?

Accepted Answer

Osteoclast

Question 12

Which structure allows for the passage of blood vessels and nerves into compact bone?

Accepted Answer

Haversian (central) canal

Question 13

Which of the following best describes the function of red bone marrow?

Accepted Answer

Production of red and white blood cells

Question 14

A child is experiencing growth in the length of their femur. Which process is primarily responsible for this?

Accepted Answer

Interstitial growth at the epiphyseal plate

Question 15

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

Accepted Answer

Mesenchymal cells differentiate into osteoblasts, osteoid is secreted, and mineralization occurs

Question 16

Which of the following bones is formed by intramembranous ossification?

Accepted Answer

Clavicle

Question 17

Which of the following best explains why spongy bone is found at the ends of long bones?

Accepted Answer

It helps withstand forces from multiple directions due to its trabecular structure

Question 18

Which of the following is a correct description of the periosteum?

Accepted Answer

A connective tissue layer that covers the outer surface of bone and contains osteoprogenitor cells

Question 19

Which of the following statements about osteocytes is TRUE?

Accepted Answer

They maintain bone matrix and regulate bone density by releasing chemicals

Question 20

A patient with osteoporosis has increased activity of which bone cell type?

Accepted Answer

Osteoclasts

Bones and Bone Structure: Chapter 6 Study Notes

Guida di studio - Domande di pratica