Heart
beat
beat
How many times does the heart typically beat per day?
100.000
To estimate your maximum heart rate, subtract your age from this number.
220
What system controls the heartbeat?
the cardiac conduction system
True or False: A heart’s beating is controlled by the brain.
False
How many gallons of blood does the heart pump each day?
2000 gallons
What would the maximum heart rate be for a 18-year-old?
202
The heart continues to beat for a short time even when separated from the body. What enables this?
the heart’s own electrical system
A fit person’s heart beats as few as how many times per minute?
40 to 50 beats per minute
Your heart beats about … times over an average lifetime
How does your heart rate change when you’re stressed or exercising?
it speeds up
This system is responsible for the automatic function of the heartbeat.
the cardiac conduction system
This organ pumps about 2,000 gallons of blood each day.
heart
What is the typical resting heart rate range for most people?
60 to 100 beats per minute
What’s the heart rate when sitting quietly in a chair for most people?
between 60 and 100 beats per minute
The heart can beat independently from the body for a short time because …?
electrical system
The heart beats about how many times over a typical lifetime?
3 billion