Question 1

Which of the following best explains why vitamin D deficiency leads to weak and deformed bones?

Accepted Answer

Vitamin D is required for the absorption of calcium from the gut into the blood.

Question 2

A child presents with bowed legs and bone pain. Lab results show low calcium and vitamin D. What is the most likely diagnosis?

Accepted Answer

Rickets

Question 3

Which of the following foods is LEAST likely to help prevent vitamin D deficiency?

Accepted Answer

Brown colored sodas

Question 4

Osteoporosis is characterized by which of the following processes?

Accepted Answer

Bone resorption outpaces bone deposition over time

Question 5

Which risk factor is most directly linked to increased parathyroid hormone (PTH) secretion and subsequent bone loss?

Accepted Answer

High blood phosphate from consuming sodas

Question 6

A 70-year-old woman with a family history of osteoporosis, who drinks colored sodas daily and rarely exercises, is at risk for which condition?

Accepted Answer

Osteoporosis

Question 7

Which of the following is a recommended prevention strategy for osteoporosis?

Accepted Answer

Regular weight-bearing exercise

Question 8

Which type of joint is found between the vertebrae and the pubic symphysis?

Accepted Answer

Cartilage joint (fibrocartilage)

Question 9

Which joint type allows the greatest range of movement?

Accepted Answer

Synovial joint

Question 10

A patient with osteoporosis suffers a hip fracture. Which process most likely contributed to this injury?

Accepted Answer

Bone resorption exceeding bone deposition

Question 11

Which of the following equations best represents the relationship between calcium absorption and vitamin D?

Accepted Answer

$$Ca_{abs} \propto [Vitamin\ D]$$

Question 12

Which of the following is NOT a risk factor for osteoporosis?

Accepted Answer

High calcium intake

Question 13

Which joint type is characterized by narrow sheets of dense irregular connective tissue and is found in most skull bones?

Accepted Answer

Fibrous joint (sutures)

Question 14

Which of the following best describes the role of UV sunlight in bone health?

Accepted Answer

UV sunlight stimulates vitamin D production in the skin, which is necessary for calcium absorption.

Question 15

A person who avoids dairy, rarely goes outside, and drinks sports drinks daily is most at risk for which condition?

Accepted Answer

Osteoporosis

Question 16

Which of the following is a function of joints in the human body?

Accepted Answer

Allow movement between bones

Question 17

Which of the following statements about synovial joints is correct?

Accepted Answer

They have a complex structure and allow a wide range of movement.

Question 18

Which lifestyle modification would most effectively reduce the risk of osteoporosis?

Accepted Answer

Engaging in regular weight-bearing exercise

Question 19

Which of the following best describes the effect of high blood phosphate on bone health?

Accepted Answer

It triggers the parathyroid to secrete PTH, increasing bone resorption.

Question 20

Which joint type is described as cord/rope-like dense regular connective tissue?

Accepted Answer

Fibrous joint (ligaments)

Bone Health, Joint Structure, and Movement: Study Notes for Anatomy & Physiology

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