Question 1

Which of the following best describes the difference between intramembranous and endochondral ossification?

Accepted Answer

Intramembranous ossification forms bones directly from mesenchymal tissue, while endochondral ossification forms bones from a cartilage model.

Question 2

A patient presents with a fracture in the diaphysis of their femur. Which region of the bone is affected?

Accepted Answer

The shaft of the bone (diaphysis)

Question 3

Which of the following bone types is most likely to be formed by intramembranous ossification?

Accepted Answer

Flat bones such as the parietal bone of the skull

Question 4

Which hormone increases blood calcium levels by stimulating osteoclast activity?

Accepted Answer

Parathyroid hormone (PTH)

Question 5

A bone marking described as a 'large, rough projection' is called a:

Accepted Answer

Trochanter

Question 6

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

Accepted Answer

Hormone synthesis

Question 7

During bone fracture repair, what is the correct sequence of events?

Accepted Answer

Formation of hematoma, formation of fibrocartilaginous callus, formation of bony callus, bone remodeling

Question 8

Which cell type is responsible for bone resorption?

Accepted Answer

Osteoclasts

Question 9

A deficiency in vitamin D can lead to impaired bone growth. Which process is most directly affected?

Accepted Answer

Ossification

Question 10

Which of the following best describes the histological difference between compact and spongy bone?

Accepted Answer

Compact bone is organized into osteons (Haversian systems), while spongy bone contains trabeculae.

Question 11

A child is diagnosed with a growth plate injury. Which structure is affected?

Accepted Answer

Epiphyseal plate

Question 12

Which bone marking is described as a 'shallow depression'?

Accepted Answer

Fossa

Question 13

Which of the following equations best represents the homeostatic regulation of blood calcium levels?

Accepted Answer

$$\Delta [Ca$$^{2+}$$] = PTH - Calcitonin$$

Question 14

Which bone cell is most active during the formation of new bone tissue?

Accepted Answer

Osteoblasts

Question 15

A patient with hypercalcemia would most likely have increased secretion of which hormone?

Accepted Answer

Calcitonin

Question 16

Which of the following is a real-life example of a sesamoid bone?

Accepted Answer

Patella

Question 17

Which structure allows blood vessels and nerves to pass through compact bone?

Accepted Answer

Central (Haversian) canal

Question 18

Which of the following is a multi-step homeostatic response to low blood calcium levels?

Accepted Answer

Parathyroid hormone is released, stimulating osteoclasts to break down bone and release calcium into the blood.

Question 19

Which bone marking is described as a 'rounded articular projection'?

Accepted Answer

Condyle

Question 20

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

Accepted Answer

It covers the outer surface of bone and contains osteoblasts for bone growth and repair.

Chapter 6: Bone Tissue – Anatomy & Physiology Study Guidance

Guida di studio - Domande di pratica