Unit 4 Circulation Retake Review

Which part of human blood is primarily responsible for transporting nutrients, hormones, and wastes?

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The diagram shown represents the human heart, and the direction of blood flow is indicated by arrows. Which part is the aorta?

• 1

• 2

• 3

• 10

Which chamber of the human heart receives most of the blood returning from the brain through the superior vena cava?

• Right Atrium

• Right Ventricle

• Left Atrium

• Left Ventricle

Compared to a drop of blood taken from a vein in the arm, a drop of blood taken from an artery would normally contain...

• more carbon dioxide and oxygen

• More carbon dioxide and less oxygen

• Less carbon dioxide and more oxygen

• Less carbon dioxide and less oxygen.

The circulation of blood to and from the LUNGS is known as...

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A function of human blood is to

• Maintain homeostasis

• Produce Energy

• Produce new cells

• Keep the heart beating

In humans, the red bone marrow provides

• Structural support for the body

• A source of new blood cells

• An attachment site for muscle tissue

• A site to trap bacteria

Oxygenated blood

• Is mixed with deoxygenated blood

• Comes from the cells of the body

• Moves from the lungs to all body cells

• Is high in carbon dioxide

Deoxygenated blood returns to the heart from the body by ...

• Pulmonary Artery

• Both the superior and inferior vena cava

• Superior Vena Cava

• Inferior Vena Cava

The main components of blood are:

• Platelets, red blood cells, plasma, white blood cells

• Red blood cells, platelets

• Proteins, plasma, neutrophils

• White blood cells, red blood cells, oxygen