Question 1

Which of the following is NOT a function of bones in the human body?

Accepted Answer

Transportation of nutrients

Question 2

A gymnast suffers a fracture in her femur. Which part of the skeleton does this bone belong to?

Accepted Answer

Appendicular skeleton

Question 3

Which bone cell type is primarily responsible for bone resorption?

Accepted Answer

Osteoclast

Question 4

The structural unit of compact bone, which consists of concentric rings of bone matrix, is called a(n):

Accepted Answer

Osteon

Question 5

Which of the following best describes the function of osteocytes?

Accepted Answer

Mature bone cells that maintain bone matrix and act as stress sensors

Question 6

A patient with anemia may have yellow bone marrow convert to red bone marrow. This process is important for which function?

Accepted Answer

Blood cell formation (hematopoiesis)

Question 7

Which of the following bone markings is most likely to serve as a passageway for blood vessels and nerves?

Accepted Answer

Opening

Question 8

The periosteum is a membrane that covers the external surface of bones except at joints. Which layer of the periosteum contains osteogenic stem cells?

Accepted Answer

Osteogenic layer

Question 9

Which of the following is the principal inorganic component of bone that contributes to its hardness?

Accepted Answer

Hydroxyapatite

Question 10

A long bone such as the humerus contains a shaft and two ends. What is the name of the shaft?

Accepted Answer

Diaphysis

Question 11

Which of the following statements about spongy bone is TRUE?

Accepted Answer

It contains trabeculae that are organized along lines of stress.

Question 12

Which bone cell type is derived from hematopoietic stem cells and functions in bone breakdown?

Accepted Answer

Osteoclast

Question 13

Which of the following best explains why bone is able to resist both compression and tension?

Accepted Answer

Combination of collagen fibers and hydroxyapatite crystals

Question 14

A patient presents with a bone injury at the epiphyseal line. What is the clinical significance of this area?

Accepted Answer

It is a remnant of the childhood epiphyseal plate where bone growth occurred.

Question 15

Which of the following equations best represents the relationship between bone mass ($$M$$), density ($$\rho$$), and volume ($$V$$)?

Accepted Answer

$$M = ho 	imes V$$

Question 16

Which of the following is a correct description of the function of osteocalcin?

Accepted Answer

It helps regulate insulin secretion, glucose levels, and metabolism.

Question 17

Which of the following structures allows communication between osteocytes in an osteon?

Accepted Answer

Canaliculi

Question 18

A forensic scientist finds a bone sample that is half as strong as steel in resisting compression and as strong as steel in resisting tension. What property of bone does this observation illustrate?

Accepted Answer

Bone's mineral composition provides hardness and resistance to compression.

Question 19

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

Accepted Answer

It is most active in flat bones and some irregular bones such as the hip bone.

Question 20

Which of the following best describes the role of sacrificial bonds in bone?

Accepted Answer

They stretch and break to dissipate energy and prevent fractures.

Bones and Skeletal Tissues: Structure and Function

Guida di studio - Domande di pratica

Study guide - Flashcard