Question 1

Which type of cartilage is most abundant in the human body and is primarily responsible for providing a firm matrix that cushions and resists compression in joints?

Accepted Answer

Hyaline cartilage

Question 2

A patient presents with a torn meniscus in the knee. Which type of cartilage is most likely damaged?

Accepted Answer

Fibrocartilage

Question 3

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

Accepted Answer

It provides nutrients and houses chondroblasts for cartilage growth and repair.

Question 4

Which of the following locations contains elastic cartilage?

Accepted Answer

Epiglottis

Question 5

Which of the following statements about compact bone is TRUE?

Accepted Answer

It is organized into osteons with concentric lamellae surrounding a central canal.

Question 6

A child is diagnosed with rickets, resulting in bowed long bones. Which of the following best explains the underlying cause?

Accepted Answer

Insufficient vitamin D leads to poor calcium absorption and inadequate bone mineralization.

Question 7

Which of the following is a function of osteoclasts during bone remodeling?

Accepted Answer

Dissolving bone matrix and releasing minerals into the bloodstream

Question 8

Which process describes the replacement of a connective tissue membrane with bone, as seen in the formation of the skull and clavicle?

Accepted Answer

Intramembranous ossification

Question 9

A fracture heals through several stages. Which of the following correctly lists the sequence of events in bone fracture healing?

Accepted Answer

Hematoma formation → fibrocartilaginous callus → bony callus → bone remodeling

Question 10

Which of the following best explains why nutrients must diffuse through canaliculi to reach osteocytes in compact bone?

Accepted Answer

Red blood cells are too large to pass through canaliculi, so nutrients must diffuse.

Question 11

Which of the following is a distinguishing feature of fibrocartilage compared to hyaline cartilage?

Accepted Answer

Fibrocartilage contains a higher concentration of collagen fibers and no elastic fibers.

Question 12

Which of the following bones is classified as a flat bone?

Accepted Answer

Sternum

Question 13

Which of the following best describes the difference between the epiphyseal plate and the epiphyseal line?

Accepted Answer

The epiphyseal plate is a region of active growth in long bones, while the epiphyseal line is the ossified remnant after growth is complete.

Question 14

Which hormone secreted by osteoblasts helps regulate blood sugar levels?

Accepted Answer

Osteocalcin

Question 15

A patient with osteoporosis is at increased risk for fractures because:

Accepted Answer

Osteoclasts outpace osteoblasts, resulting in porous and weak bones.

Question 16

Which of the following best describes the arrangement of collagen fibers in adjacent lamellae of an osteon?

Accepted Answer

They run perpendicular to each other, increasing strength.

Question 17

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

Accepted Answer

Ossification center forms in diaphysis → blood vessels invade → secondary ossification centers form in epiphyses → epiphyseal plates ossify

Question 18

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

Accepted Answer

Storage of fat (energy)

Question 19

Which of the following best explains why vitamin D is essential for bone health?

Accepted Answer

It facilitates calcium absorption from the digestive tract, which is necessary for bone mineralization.

The Skeletal System: Cartilage and Bone

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