Question 1

Which of the following best describes the function of the perichondrium in cartilage tissue?

Accepted Answer

It serves as a dense connective tissue membrane that surrounds hyaline cartilage, providing nutrients and acting as a protective girdle.

Question 2

A patient suffers a fracture in the diaphysis of their femur. Which bone structure is most directly involved in the repair process by providing osteogenic cells?

Accepted Answer

Periosteum

Question 3

Which type of cartilage is most likely to be found in the intervertebral discs, and what property does it provide?

Accepted Answer

Fibrocartilage; provides strong resistance to compression and tension

Question 4

During endochondral ossification, which event occurs at the epiphyseal plate to allow bones to grow in length?

Accepted Answer

Cartilage grows on the epiphysis side while bone replaces cartilage on the diaphysis side

Question 5

Which of the following best explains why compact bone is stronger than spongy bone?

Accepted Answer

Compact bone contains tightly packed osteons with concentric lamellae, providing greater strength and resistance to stress.

Question 6

A 12-year-old child has an X-ray showing a visible epiphyseal plate in the femur. What does this indicate about the bone?

Accepted Answer

The bone is still growing in length.

Question 7

Which of the following is the correct sequence of structures from the outermost to the innermost in a long bone?

Accepted Answer

Periosteum → Compact bone → Endosteum → Medullary cavity

Question 8

Which cell type is primarily responsible for bone resorption, and what is the main chemical it secretes to accomplish this?

Accepted Answer

Osteoclast; secretes HCl (hydrochloric acid)

Question 9

A patient with osteoporosis is at increased risk for bone fractures. Which structural feature of compact bone is most affected by the loss of bone density?

Accepted Answer

Osteons (Haversian systems)

Question 10

Which of the following best describes the function of canaliculi in compact bone?

Accepted Answer

They allow for the exchange of nutrients and waste between osteocytes and blood vessels.

Question 11

A long bone is fractured and healing. Which process is most important for the initial formation of new bone tissue at the site of injury?

Accepted Answer

Osteoblasts secrete bone matrix, which then becomes mineralized.

Question 12

Which of the following statements about the medullary cavity is correct?

Accepted Answer

It is lined by endosteum and contains yellow marrow in adults.

Question 13

A patient has a genetic defect affecting the production of collagen in bone. Which property of bone is most likely to be compromised?

Accepted Answer

Tensile strength and resistance to stretching

Question 14

Which of the following best explains why the arrangement of hydroxyapatite crystals in bone reduces the risk of cracks?

Accepted Answer

The crystals are packed together in a way that distributes stress and prevents crack propagation.

Question 15

Which of the following is a correct real-life application of bone remodeling?

Accepted Answer

Weight-bearing exercise increases bone density by stimulating osteoblast activity.

Question 16

A patient presents with a bone tumor located in the trabeculae of a flat bone. Which type of bone tissue is primarily affected?

Accepted Answer

Spongy bone

Question 17

Which of the following best describes the difference between red and yellow marrow?

Accepted Answer

Red marrow is involved in hematopoiesis, while yellow marrow stores fat.

Question 18

A 30-year-old athlete has increased bone density in the dominant arm. Which process best explains this adaptation?

Accepted Answer

Bone deposition by osteoblasts in response to mechanical stress

Question 19

Which of the following is true regarding the location and function of the endosteum?

Accepted Answer

It lines the internal bone surfaces, including the medullary cavity and trabeculae, and contains osteogenic cells.

Question 20

Which of the following equations best represents the chemical reaction for bone mineralization?

Accepted Answer

$$Ca^{2+}$$ + $$PO_4$$^{3-} \rightarrow $$Ca_3$$($$PO_4)_2$

Bones and Skeletal Tissues: Structure, Function, and Classification

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