All about the heart
The upper chambers of the heart.
Atria
The heart is an organ.
True
These help your blood clot.
Platelets
Veins
This system helps your body fight off infections.
Immune system
The blood that enters the right atrium is this kind of blood.
Oxygen-poor blood
Red blood cells carry oxygen.
True
The small round disks that carry oxygen.
Red blood cells
These are the smallest blood vessels that connect arteries and veins.
Capillaries
White blood cells make these to help fight off infections. They are part of your immune system.
Antibodies
Oxygen-rich blood comes back from the lungs to this chamber.
Left ventricle
Veins are thick, muscular blood vessels.
False- ARTERIES are thick, muscular blood vessels
These help fight off infections and disease.
White blood cells
These carry blood to the organs.
Ateries
Dead or weakened bacteria or viruses are used to create this that help prevent diseases.
Vaccines
These open and close to let blood go from the atrium to the ventricle and stop blood from flowing backward.
Valves
Plasma helps your blood clot.
False- PLATELETS help clot your blood
The yellowish liquid that contains red and white blood cells and platelets.
Plasma
Deoxygenated blood comes back to the heart through these.
These are in charge of your immune system.
White blood cells
This organ works with the heart to put oxygen in the blood.
Lungs
Capillaries are our largest blood vessel.
False- Capillaries are our SMALLEST blood vessel
About 1 minute
These are thick, muscular blood vessels
Arteries
We keep our cardiovascular system healthy by doing these two things.
1. Eating a balanced and healthy diet
2. Getting regular exercise