Question 1

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

Accepted Answer

Hormone synthesis

Question 2

A patient presents with a fracture in the patella. Based on bone classification, which type of bone is the patella?

Accepted Answer

Sesamoid bone

Question 3

Which bone cell type is responsible for producing new bone matrix during osteogenesis?

Accepted Answer

Osteoblasts

Question 4

A long bone is fractured and needs repair. Which cell type will divide to produce osteoblasts and assist in fracture repair?

Accepted Answer

Osteogenic cells

Question 5

Which of the following best describes the structure of flat bones such as the parietal bone?

Accepted Answer

Spongy bone sandwiched between two layers of compact bone

Question 6

During endochondral ossification, what is the primary tissue that is gradually replaced by bone?

Accepted Answer

Hyaline cartilage

Question 7

Which hormone increases blood calcium ion levels by stimulating osteoclast activity, increasing intestinal absorption, and decreasing kidney excretion?

Accepted Answer

Parathyroid hormone (PTH)

Question 8

A patient with severe osteoporosis is found to have a tumor releasing osteoclast-activating factor. What is the most likely effect on their bones?

Accepted Answer

Severe bone loss due to increased osteoclast activity

Question 9

Which vitamin is essential for collagen synthesis and stimulates osteoblast differentiation?

Accepted Answer

Vitamin C

Question 10

A 50-year-old woman is diagnosed with osteoporosis. Which of the following factors most likely contributed to her condition?

Accepted Answer

Decreased sex hormone levels after menopause

Question 11

Which of the following equations best represents the formation of hydroxyapatite in bone matrix?

Accepted Answer

$$Ca_3$$($$PO_4)_2 + Ca(OH)_2$$ \rightarrow Ca_{10}($$PO_4)_6(OH)_2$

Question 12

Which bone cell type is derived from the same stem cells that produce monocytes and macrophages?

Accepted Answer

Osteoclasts

Question 13

A child’s x-ray shows a visible epiphyseal line in the femur. What does this indicate about their bone growth?

Accepted Answer

Epiphyseal closure has occurred

Question 14

Which of the following best describes the process of bone remodeling?

Accepted Answer

Involves balanced activities of osteocytes, osteoblasts, and osteoclasts throughout life

Question 15

Which of the following is a plausible consequence of inactivity on bone mass?

Accepted Answer

Bone mass decreases rapidly, up to one-third lost in a few weeks

Question 16

Which of the following is TRUE regarding the periosteum?

Accepted Answer

It consists of outer fibrous and inner cellular layers

Question 17

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

Accepted Answer

They allow exchange of nutrients, wastes, and gases between osteocytes

Question 18

A patient has a fracture that is stabilized by an internal callus in the medullary cavity and an external callus of cartilage and bone. Which step of fracture repair is this?

Accepted Answer

Callus formation

Question 19

Which of the following best explains why bones are able to adapt to increased stress from exercise?

Accepted Answer

Mineral recycling and osteoblast stimulation result in thicker and stronger bones

Question 20

Which of the following is a correct statement about the blood supply to bones?

Accepted Answer

Nutrient arteries and veins pass through nutrient foramina in the diaphysis

Bones and Bone Structure: Study Notes for Anatomy & Physiology

Study Guide - Practice Questions

Study Guide - Flashcards