Function of the Circulatory System

What is the function of the circulatory system?

• To transport nutrients, oxygen, and hormones to body cells and wastes away from body cells.

• To digest food and absorb nutrients.

• To protect the body from infections.

• To control body temperature.

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What type of tissue is blood?

• Epithelial

• Connective

• Muscle

• Nervous

What is the liquid part of blood called?

• Plasma

• Platelets

• Red blood cells

• White blood cells

Tiny pieces of cells that clump together to form a blood ______ when an injury occurs.

• clot

• cell

• vessel

• tissue

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Red Blood Cells (RBCs) are the most common blood cells and are disc-shaped. They contain hemoglobin to carry _______.

• oxygen

• carbon dioxide

• nutrients

• hormones

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What is the main function of arteries?

• Carry blood to the heart

• Carry blood away from the heart

• Connect arteries and veins

• Site of nutrient exchange.

Which major artery is responsible for carrying blood away from the heart?

• Aorta

• Pulmonary artery

• Carotid artery

• Femoral artery

What is the function of capillaries?

• Carry blood to the heart

• Carry blood away from the heart

• Connect arteries and veins

• Prevent backward flow of blood

What is the primary function of the respiratory system?

What does the nasal cavity contain that helps clean the air?

• Mucus

• Blood

• Saliva

• Tears