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Human Circulatory System Overview

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Questions and Answers

Which of the following is NOT a chamber of the human heart?

Right ventricle

Central atrium (correct)

Right atrium

Left atrium

What is the function of the pulmonary vein?

To carry oxygen-rich blood from the left ventricle to the body

To carry oxygen-poor blood from the body to the right atrium

To carry oxygen-rich blood from the lungs to the left atrium (correct)

To carry oxygen-poor blood from the right ventricle to the lungs

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

Veins are thicker than arteries because they carry blood under higher pressure

Arteries are thinner than veins because they carry blood away from the heart

Arteries are thicker than veins because they carry blood under higher pressure from the heart (correct)

Veins and arteries have the same thickness because they carry blood at the same pressure

What is the term used to describe the contraction of the heart chambers?

Systole (B) Signup and view all the answers

Which of the following is an example of an open circulatory system?

Cockroaches (B) Signup and view all the answers

What is the function of the pericardium in the human heart?

To provide a protective layer around the heart (D) Signup and view all the answers

Which valve allows oxygenated blood to flow from the left atrium to the left ventricle?

Bicuspid valve (C) Signup and view all the answers

What is the primary function of the pulmonary circulation?

To transport deoxygenated blood to the lungs for oxygenation (B) Signup and view all the answers

Which of the following processes occurs within the body's cells?

Cellular respiration (B) Signup and view all the answers

What is the primary function of the systemic circulation?

To transport oxygenated blood to the body's tissues (B) Signup and view all the answers

Which blood vessel carries deoxygenated blood from the body's tissues to the right atrium?

Vena cava (C) Signup and view all the answers

What is the name given to the process where blood circulates through both the pulmonary and systemic circulations?

Double circulation (B) Signup and view all the answers