Circulatory System

What is the most important circulatory system organ in your body?

• Veins

• Blood

• Lung

• Heart

The left-upper side on the image that we discussed is called

• Left Atrium

• Right Atrium

• Left Ventricle

• Right Ventricle

The ___ side of heart is used to deal with deoxygenated blood.

• Upper

• Right

• Left

• Lower

The left ventricle has the thickest muscle wall since ___

• It need to pump the blood to the 2 lungs.

• It need to pump the blood to the whole body.

• It need to pump the blood to the digestive system.

• It parasites in human body and take nutritions in it.

Arteries are fulled with blood with high concentration of ___

• Oxygen

• Nitrogen

• Ammonia

• Urea

COVID-19 infect one of the organs in circulatory system, which is __

• Lungs

• Heart

• Kidneys

• Liver

___ is (are) the smallest blood vessel (s).

• Capillaries

• Arteries

• Veins

• Heart

The kidneys have a shape of ___

• S

• I

• O

• J

The kidneys deal with ——

• Liquid waste

• Solid waste

• Sweat

• Saliva

The red blood cells have a circular rate of _____ days.

• 30

• 60

• 90

• 120