How does the heart work?

• It pumps blood first to the lungs, back to the heart and then around the rest of the body.

• It pumps blood first to the rest of the body, back to the lungs and then to the heart.

• It pumps blood around the rest of the body, back to the heart and then to the lungs,

Tags

NGSS.MS-LS1-3

One of the three functions of the circulatory system is:

• Carries waste away from our cells

• Helps regulate body temperature

• Delivers needed substances to the cells

• All of the above

·         Type of cell that functions to carry oxygen to tissues:

• Erythrocyte

• Thrombocyte

• Leukocyte

• White Blood Cell

Tags

NGSS.MS-LS1-2

Type of cell that functions to stop bleeding:

• Red blood cell

• Platelet

• Leukocyte

• White Blood Cell

·         Type of cell that defends the body against infectious disease:

• Thrombocyte

• Leukocyte

• Erythrocyte

• Red blood cell

Blood vessel that exchanges oxygen for waste products:

• Artery

• Vein

• Capillary

What is the name of the sac that encloses the heart?

If someone has type A blood, what type of antibodies are in their blood?

• A

• B

• Both A and B

• None

Blood carries ?

• oxygen
• nutrients
• CO₂
• all of these

Why do arteries have to be thicker and stronger than veins?

• They aren't
• blood pressure is higher in arteries
• arteries are longer
• arteries carry blood with oxygen