Question 1

Which heart valve prevents backflow of blood from the right ventricle into the right atrium during ventricular contraction?

Accepted Answer

Tricuspid valve

Question 2

Blood returning from the lungs enters which chamber of the heart?

Accepted Answer

Left atrium

Question 3

What is the correct sequence of blood flow through the heart and lungs?

Accepted Answer

Right atrium → right ventricle → pulmonary artery → lungs → left atrium → left ventricle → aorta

Question 4

Which vessel carries oxygenated blood from the lungs to the heart?

Accepted Answer

Pulmonary vein

Question 5

What is the main function of the septum in the heart?

Accepted Answer

To separate oxygenated and deoxygenated blood

Question 6

Which side of the heart pumps blood to the lungs, and what type of blood does it carry?

Accepted Answer

Right side; deoxygenated blood

Question 7

The 'lub' (S1) heart sound is caused by the closure of which valves?

Accepted Answer

Tricuspid and mitral (bicuspid) valves

Question 8

Which structure is responsible for initiating the electrical impulse that triggers a heartbeat?

Accepted Answer

Sinoatrial (SA) node

Question 9

What is the function of the pulmonary valve?

Accepted Answer

Prevents backflow of blood into the right ventricle

Question 10

If the left ventricle fails to contract properly, which of the following is most likely to occur?

Accepted Answer

Blood backs up into the pulmonary circulation, causing pulmonary edema

Question 11

Which equation best represents cardiac output ($$CO$$)?

Accepted Answer

$$CO = HR 	imes SV$$

Question 12

Which vessel carries deoxygenated blood from the body to the heart?

Accepted Answer

Superior and inferior vena cava

Question 13

During which phase of the cardiac cycle does the left ventricle contract to send blood into the aorta?

Accepted Answer

Ventricular systole

Question 14

Which of the following best describes the function of heart valves?

Accepted Answer

They ensure unidirectional blood flow through the heart

Question 15

Which chamber of the heart has the thickest myocardium and why?

Accepted Answer

Left ventricle; it must pump blood to the entire body

Comprehensive Study Notes for ANP College Final Exam: Special Senses, Endocrine, Blood, Cardiovascular, Lymphatic, Respiratory, Digestive, Urinary, and Reproductive Systems

Study Guide - Practice Questions