Heart Anatomy Quiz

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Questions and Answers

Which chamber of the heart is responsible for pumping deoxygenated blood to the lungs?

Right ventricle (correct)
Right atrium
Left atrium
Left ventricle

What is the primary function of the atrioventricular valves?

To allow blood to flow backward
To oxygenate the blood
To pump blood to the body
To control the flow of blood between the atria and ventricles (correct)

What characteristic distinguishes ventricles from atria in the heart's structure?

Atria pump blood to the lungs
Ventricles have thinner walls
Atria receive oxygenated blood only
Ventricles have thicker muscular walls (correct)

Which statement regarding the heart's chambers is accurate?

Both ventricles receive blood from their corresponding atrium. (C) Signup and view all the answers

Which component of the heart primarily supplies oxygen to the cardiac muscle itself?

Coronary blood vessels (D) Signup and view all the answers

What is the duration of the entire cardiac cycle?

0.8 seconds (A) Signup and view all the answers

What causes the 'dub' sound during a heartbeat?

Closure of the pulmonary and aortic valves (B) Signup and view all the answers

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

Arteries carry blood away from the heart. (C) Signup and view all the answers

What separates the two ventricles of the heart?

Interventricular septum (C) Signup and view all the answers

Which circuit is responsible for transporting deoxygenated blood to the lungs?

Pulmonary Circuit (A) Signup and view all the answers

What happens during the diastole phase of the cardiac cycle?

Ventricles relax and fill with blood (B) Signup and view all the answers

Which structure lubricates the surface of the heart to prevent friction?

Pericardium (C) Signup and view all the answers

What is the function of the pulmonary valve in the heart?

Controls blood flow between the right ventricle and pulmonary artery (D) Signup and view all the answers

Which chamber does deoxygenated blood enter before moving to the right ventricle?

Right atrium (C) Signup and view all the answers

After oxygenation in the lungs, where does the blood go next?

Into the left atrium (D) Signup and view all the answers

What role does the aortic valve play in the circulatory system?

Controls blood flow between the left ventricle and aorta (D) Signup and view all the answers

Which structure carries blood from the lower body to the heart?

Inferior vena cava (C) Signup and view all the answers

Which statement correctly describes the blood flow through the right side of the heart?

Deoxygenated blood is pumped to the lungs for oxygenation (D) Signup and view all the answers

How does blood leave the heart to enter systemic circulation?

Through the aorta (D) Signup and view all the answers

What is the primary role of the thick ventricles in the heart?

To pump blood into the lungs and the rest of the body (C) Signup and view all the answers

Flashcards

What is the heart?

The heart is a muscular organ located between the lungs that pumps oxygenated and deoxygenated blood throughout the body.

How many chambers does the heart have?

The heart has four chambers: the right atrium, right ventricle, left atrium, and left ventricle. Each chamber plays a specific role in the blood circulation process.

What are the atria?

The atria are the receiving chambers of the heart. They collect blood returning from the body and lungs before transferring it to the ventricles.

What are the ventricles?

The ventricles are the powerful pumping chambers. They receive blood from the atria and pump it out to the lungs and the rest of the body.