Circulatory System

The main function of the circulatory system is 

• To give the body structure and support
• Excrete waste
• transport blood, nutrients, and gases throughout the body
• to transport messages from the body to the brain

The main function of the red blood cells is to 

• allow gases to exchange
• fight infection
• give blood its color
• help clot blood

White blood cells

• allow for gases to exchange
• give blood its color
• fight infection and disease
• help clot blood

Platelets 

• allow for gases to exchange
• give blood its color
• fight infection and disease
• help clot blood

The heart is made up of _________ chambers

• one 
• two 
• three
• four

Oxygen rich blood leaves the heart through the

• right atrium
• left atrium 
• right ventricle
• right atrium

Arteries carry nutrient and oxygen rich blood _____________ from the heart.

• back to
• away
• parallel

Veins carry blood _________  the heart.

• back to 
• away
• parallel

Blood vessels are 

• veins
• capillaries
• arteries
• all of them

The heart is the size of

• your thumb
• your fist
• your ribcage
• your kitchen table