Functions
This is the main job of the circulatory system
What is transport of nutrients, gases, and wastes?
These vessels carry blood away from the heart
what are arteries?
Number of chambers in the heart
What is 4?
Blood enters the heart through these vessels
What is the vena cava?
Normal blood pressure
120/80
The circulatory system helps fight this
What is disease (immune protection)?
These vessels have valves
What are veins?
The top chambers are called this
What is the Atria?
This chamber receives blood first
What is the right atrium?
Top number of BP measures this
What is systolic pressure?
These are transported as “good stuff”
What are oxygen, nutrients, hormones, or heat?
Site of gas exchange
What are capillaries?
The heart is described as this type of pump
What is a double pump?
Blood goes to the lungs through this artery
What is the pulmonary artery?
Formula for cardiac output
What is stroke volume × heart rate?
These are transported as waste
What are carbon dioxide, urea, toxins?
Opening of arterioles is called this
What is vasodilation?
This valve is on the left side between atrium and ventricle
What is the bicuspid (mitral) valve?
Oxygenated blood returns to heart through these
What are pulmonary veins?
This happens to vessels when BP is too high
What is vasodilation?
The circulatory system ensures this about cells
What is no cell is more than 2 cells away from a blood vessel?
Why veins need valves
What is to prevent backflow due to low pressure?
The sound “lub” is caused by this
What is AV valves closing?
The largest artery leaving the heart
Special receptors that detect blood pressure
What are baroreceptors?