heart basics
what organ pumps blood throughout the body and is directed by the brain and nervous system.
the heart
What kind of machine does the heart act like when it moves blood through your body?
a pump
what parts open and close to keep blood moving one way?
valves
The heart is about the size of...
two clasped hands
What disease happens when arteries get clogged with plaque?
atherosclerosis
what system is responsible for transporting blood throughout the body.
the circulatory system
The heart has two sides, making it this what kind of a pump system.
a double pump
What sound does your heart make when it beats?
(LUB-dub)
About how many times does your heart beat in one day?
about 100,000 times
what disease is when blood flow to the heart is reduced, causing chest pain ?
coronary heart disease
What two important things does your heart send through your blood to help your body’s cells live and grow?
Nutrience and oxygen
What kind of blood does the right side of the heart pump to the lungs?
the oxygen-poor blood
how many chambers does the heart have?
four chambers
About how many gallons of blood does your heart pump each day?
2,000 gallons
what is an irregular heartbeat that can increase stroke risk
atrial fibrillation
What body system helps control how fast or slow your heart beats?
the nervous system
What does the left side of the heart send to the body?
oxygen-rich blood
what caries blood to and from the heart ?
blood vessels
The heart is _____ type of body part because it can contract and relax.
a muscle type
what diesies happens when the heart suddenly stops working ?
cardiac arrest
What is the main job of the heart?
to pump blood through our bodies
What helps control the timing of your heartbeat
electrical impulses
what connects the heart to the rest of the body and helps control it ?
the nerves
The heart works in what kind of repeating pattern?
a rhythmic loop
These are heart problems someone is born with
congenital heart disease