Circulatory System - Retake

The main organ of the circulatory system is the ?

• Brain
• Lungs
• Heart
• Glands

Blood carries ?

• oxygen
• nutrients
• CO₂
• all of these

The smallest blood vessels are the ?

• veins
• arteries
• capillaries 

The main function of the circulatory system is ?

• transportation
• interpret stimuli
• fight disease
• digest food

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

Arteries carry blood ___________ from the heart, while veins carry blood ____  the heart.

• away, to
• to, away

Cholesterol is associated with which heart disease?

• Arteriosclerosis

• Atherosclerosis

• SIckle Cell Anemia

• Hypertension

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

• A

• B

• Both A and B

• None

What is the function of platelets?

• carry oxygen

• fight against microorganisms

• initiate clotting

• close damaged blood vessels

Lower chambers of the heart

• atria

• ventricles

• valve

• septum