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Biology: Blood Circulation and Pulmonary System

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Biology: Blood Circulation and Pulmonary System

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Questions and Answers

What is the primary reason why blood flowing from the lungs to the heart is bright red?

The blood picks up oxygen from the surroundings through the skin

Oxygen combines with hemoglobin in the blood (correct)

The heart pumps blood rapidly through the circulatory system

Carbon dioxide is removed from the blood through the lungs

What is the primary function of the circulatory system?

To maintain blood pressure through muscle contractions

To regulate body temperature

To facilitate gas exchange between the lungs and heart

To transport oxygen and nutrients to cells and remove waste products (correct)

Which of the following is NOT a component of the heart?

Ventricles

Capillaries (correct)

Septum

Atria

What is the term for the process by which the heart pumps blood throughout the body?

Circulation Signup and view all the answers

What is the purpose of the pulmonary vein in the circulatory system?

To carry oxygenated blood from the lungs to the heart Signup and view all the answers

What is the term for the network of blood vessels that transport oxygen and nutrients to cells and remove waste products?

Circulatory system Signup and view all the answers

Which of the following is a risk factor for cardiovascular disease?

High blood pressure Signup and view all the answers

What is the primary function of the heart's ventricles?

To pump blood from the heart to the rest of the body Signup and view all the answers

What is the term for the movement of blood through the circulatory system?

Blood flow Signup and view all the answers

What is the purpose of the heart's atria?

To receive blood returning to the heart Signup and view all the answers