Question 1

Which of the following correctly describes the location of the heart's apex?

Accepted Answer

It is the inferior, pointed end of the heart, directed toward the left hip.

Question 2

Which layer of the pericardium is in direct contact with the heart muscle?

Accepted Answer

Visceral layer of serous pericardium (epicardium)

Question 3

What is the function of the chordae tendineae in the heart?

Accepted Answer

They anchor the heart valves to the papillary muscles, preventing valve prolapse during ventricular contraction.

Question 4

Which of the following correctly lists the blood flow pathway through the heart, starting and ending with the body?

Accepted Answer

Body → Right atrium → Right ventricle → Pulmonary artery → Lungs → Left atrium → Left ventricle → Aorta → Body

Question 5

Which formula correctly represents cardiac output ($$CO$$)?

Accepted Answer

$$CO = HR 	imes SV$$

Question 6

Which of the following statements about arteries and veins is TRUE?

Accepted Answer

Veins have valves to prevent backflow, while arteries do not.

Question 7

Which blood vessel type has the highest blood pressure?

Accepted Answer

Arteries

Question 8

Which part of the brain is primarily responsible for neural control of blood pressure?

Accepted Answer

Medulla oblongata

Question 9

Which of the following is a major function of the coronary arteries?

Accepted Answer

They supply oxygenated blood to the heart muscle.

Question 10

Which of the following best describes the difference between systole and diastole?

Accepted Answer

Systole is the contraction phase of the heart, and diastole is the relaxation phase.

Question 11

Which of the following is NOT a function of intercalated discs in cardiac muscle cells?

Accepted Answer

Prevent the spread of action potentials

Question 12

Which of the following is a correct description of the P wave in a normal electrocardiogram (ECG)?

Accepted Answer

It represents atrial depolarization.

Question 13

Which of the following is a common cause of atherosclerosis?

Accepted Answer

Chronic hypertension

Question 14

Which of the following best describes the structure of capillaries?

Accepted Answer

They consist of a single layer of endothelial cells to facilitate exchange.

Question 15

Which formula correctly represents mean arterial pressure ($$MAP$$)?

Accepted Answer

$$MAP = DBP + \frac{1}{3}(SBP - DBP)$$

Question 16

Which of the following is a feature found in veins but not in arteries?

Accepted Answer

Valves to prevent backflow

Question 17

Which of the following is a correct definition of peripheral resistance?

Accepted Answer

The opposition to blood flow due to friction between blood and vessel walls

Question 18

Which of the following is a primary way the kidneys help regulate blood pressure long-term?

Accepted Answer

By adjusting blood volume through regulation of water and sodium excretion

Question 19

Which of the following best describes cardiogenic shock?

Accepted Answer

Shock caused by heart's inability to pump sufficient blood

Question 20

Which of the following is a symptom commonly associated with congestive heart failure?

Accepted Answer

Pulmonary edema (fluid accumulation in the lungs)

Cardiovascular System: Anatomy & Physiology Study Guide

Study Guide - Practice Questions