Exploring the Cardiovascular System and Blood Circulation

What does the centrifuge machine do to the blood?

• Destroys unwanted cells

• Separates the blood into components

• Cools the blood

• Heats the blood

What is the primary function of red blood cells?

• To clot blood

• To fight infection

• To carry nutrients

• To carry oxygen

What is the primary function of the plasma in blood?

• Carrying nutrients and waste material

• Producing blood cells

• Clotting blood

• Carrying oxygen

Where does blood cell production occur in the human body?

• In the heart

• In the bones

• In the spleen

• In the liver

How often do the flies need to be fed in the laboratory?

• Every other day

• Once a week

• Every day

• Twice a week

What is the main purpose of blood donations?

• Cosmetic testing

• Educational research

• Agricultural use

• Life-saving treatments

What is the significance of blood types in transfusions?

• To match cosmetic preferences

• To determine the blood color

• To differentiate blood quality

• To ensure compatibility and prevent reactions

What is the role of leeches in modern medicine?

• Wound cleaning

• Infection control

• Blood thinning

• Pain relief

What is the effect of leech saliva on human blood?

• It thickens the blood

• It prevents blood clotting

• It causes infection

• It increases blood pressure

How is hemophilia typically managed?

• Through surgery

• With painkillers

• By blood transfusions

• Using regular injections of medicine