$$\text{Pulse Pressure} = \text{Systolic Pressure} - \text{Diastolic Pressure}$$

Question 1

Which of the following best describes the primary function of erythrocytes in human blood?

Accepted Answer

Transport oxygen and a small amount of carbon dioxide

Question 2

A patient presents with a total white blood cell count significantly above normal. Which condition is most likely indicated?

Accepted Answer

Leukocytosis

Question 3

Which layer of the heart is responsible for the contractile force that propels blood throughout the body?

Accepted Answer

Myocardium

Question 4

During the cardiac cycle, which event corresponds to ventricular relaxation?

Accepted Answer

Diastole

Question 5

A person with blood type AB has which antigens and antibodies present?

Accepted Answer

Antigens A and B; no antibodies

Question 6

Which blood vessel layer is primarily responsible for regulating blood pressure by altering vessel diameter?

Accepted Answer

Tunica media

Question 7

If a patient’s apical pulse is 80 beats per minute and their radial pulse is 72 beats per minute, what is the pulse deficit?

Accepted Answer

$$80 - 72 = 8$$

Question 8

Which of the following is a correct description of the pulmonary circulation?

Accepted Answer

It brings blood into close contact with alveoli for gas exchange

Question 9

Atherosclerosis is best described as:

Accepted Answer

A disease in which blood vessels become increasingly blocked by plaques

Question 10

Which of the following correctly matches the heart valve with its function?

Accepted Answer

Mitral valve: prevents backflow into the left atrium

Question 11

Which component of blood is most directly involved in hemostasis?

Accepted Answer

Platelets

Question 12

Which of the following is the correct formula for calculating pulse pressure?

Accepted Answer

$$	ext{Pulse Pressure} = 	ext{Systolic Pressure} - 	ext{Diastolic Pressure}$$

Question 13

Which part of the heart’s conduction system is known as the pacemaker?

Accepted Answer

Sinoatrial node

Question 14

A patient with pale, cold, and moist skin is most likely experiencing which circulatory condition?

Accepted Answer

Diverted blood flow away from the skin

Question 15

Which of the following statements about veins is correct?

Accepted Answer

Veins drain tissues and return blood to the heart

Question 16

Which segment of the ECG corresponds to ventricular depolarization?

Accepted Answer

QRS complex

Question 17

Which of the following is true regarding fetal circulation?

Accepted Answer

Nutrient and gas exchange occurs through the placenta

Question 18

If a patient’s blood pressure is measured as 120/80 mmHg, what is their pulse pressure?

Accepted Answer

$$120 - 80 = 40\ 	ext{mmHg}$$

Question 19

Which of the following best explains the role of the hepatic portal circulation?

Accepted Answer

It allows for waste and nutrients from digestive organs to be processed by the liver before entering systemic circulation

Physiology Lab quiz 3 ch 10: Blood and Cardiovascular System

Study Guide - Practice Questions