The Human Circulatory And Respiratory Systems

1. (The) _____ brings oxygen rich blood from the left ventricle to the rest of the body.

The aorta is a large artery that carries oxygenated blood from the left ventricle of the heart to the rest of the body. It is the main artery in the body and branches out into smaller arteries to supply blood to all organs and tissues. The aorta is responsible for delivering oxygen and nutrients to the cells and removing waste products, making it an essential part of the circulatory system.

Explanation

The aorta is a large artery that carries oxygenated blood from the left ventricle of the heart to the rest of the body. It is the main artery in the body and branches out into smaller arteries to supply blood to all organs and tissues. The aorta is responsible for delivering oxygen and nutrients to the cells and removing waste products, making it an essential part of the circulatory system.

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2. What is the best description of a capillary?

Smallest of the blood vessels, highways of the circulatory system, bring nutrients and CO2 to tissues

Largest of the blood vessels, side streets of the circulatory system, bring CO2 to tissues and absorb O2

Smallest of the blood vessels, side streets of the circulatory system, bring CO2 to tissues and absorb O2

Largest of the blood vessels, same as a vein, only females have them

the three types of blood vessels are veins, capillaries and arteries. capillaries are the smallest and they are the side streets, the arteries and the veins being the highways.

Explanation

the three types of blood vessels are veins, capillaries and arteries. capillaries are the smallest and they are the side streets, the arteries and the veins being the highways.

3. The vena cava is a...

Vein

Artery

Capillary

Chamber of your heart

Part of your lungs

The vena cava is a large vein that carries deoxygenated blood from the body back to the heart. It is responsible for returning blood to the heart so that it can be pumped to the lungs to receive oxygen.

Explanation

The vena cava is a large vein that carries deoxygenated blood from the body back to the heart. It is responsible for returning blood to the heart so that it can be pumped to the lungs to receive oxygen.

4. What controls the heartbeat?

Your brain

Natural Pacemaker

Muscles in your heart

Trachea

Epiglottis in your heart

It is the natural pacemaker - thse cells set the pace for the heart as a whole.

Explanation

It is the natural pacemaker - thse cells set the pace for the heart as a whole.