Question 1

Which hormone is primarily responsible for stimulating growth at the epiphyseal plate during childhood and adolescence?

Accepted Answer

Growth hormone

Question 2

A patient is diagnosed with osteoporosis after menopause. Which preventative measure is most effective in reducing further bone loss?

Accepted Answer

Engaging in regular weight-bearing exercise

Question 3

Which of the following is a function of the skeletal system?

Accepted Answer

Storage of calcium and phosphate ions

Question 4

What is the main difference between osteoclasts and osteoblasts?

Accepted Answer

Osteoclasts break down bone, osteoblasts build bone

Question 5

Parathyroid hormone increases blood calcium levels by which mechanism?

Accepted Answer

Increasing calcium absorption in the intestines

Question 6

Which type of bone contains trabeculae and is found at the ends of long bones?

Accepted Answer

Spongy bone

Question 7

Which joint type allows movement in multiple axes and is most susceptible to injury due to its mobility?

Accepted Answer

Ball-and-socket joint

Question 8

Which connective tissue layer surrounds individual muscle fibers?

Accepted Answer

Endomysium

Question 9

What causes rigor mortis after death?

Accepted Answer

Lack of ATP preventing detachment of myosin from actin

Question 10

What is the primary function of the sarcoplasmic reticulum in skeletal muscle cells?

Accepted Answer

Storing and releasing calcium ions

Question 11

Which of the following is the functional unit of a skeletal muscle fiber?

Accepted Answer

Sarcomere

Question 12

Which property of muscle tissue allows it to respond to a stimulus?

Accepted Answer

Excitability

Question 13

Which white blood cell type is primarily responsible for fighting bacterial infections?

Accepted Answer

Neutrophils

Question 14

What is the function of erythropoietin?

Accepted Answer

Stimulates red blood cell production

Question 15

A blood sample is spun in a centrifuge to separate its components by density. What is this process called?

Accepted Answer

Centrifugation

Question 16

How many oxygen molecules can a single hemoglobin molecule carry?

Accepted Answer

$$4$$

Question 17

Which condition results from a lack of clotting factors and leads to excessive bleeding?

Accepted Answer

Hemophilia

Question 18

Why is the left ventricular wall of the heart thicker than the right ventricular wall?

Accepted Answer

It pumps blood to the entire body

Question 19

Which blood vessels supply oxygenated blood directly to the myocardium?

Accepted Answer

Coronary arteries

Question 20

In the heart, where does the pericardial cavity lie?

Accepted Answer

Between the parietal and visceral layers of the pericardium

Anatomy & Physiology Study Guide: Skeletal, Muscular, Cardiovascular, and Blood Systems

Guida di studio - Domande di pratica