The circulatory system
What stretch's over 60,000 miles in a human body?
The circulatory system blood vessels.
Where is the heart located?
in your chest near the lungs.
what is another name for the windpipe in your body?
The trachea
WHich lungs is slightly smaller in size in the human body?
The left lung is slightly smaller in size so that the heart can fit.
How many lungs does the human have?
Two lungs.
What happens to the blood when your heart pumps?
The blood is pumped all over the body.
How many times does the heart beat per minute?
60 to 100 beats per minute.
which lung has the most lobes?
the right lobe.
what is the bronchi's job in the human body?
They carry air into each lung.
What color are human lungs?
Light pink.
What is the name for the thickest blood vessel?
The arteries.
what is your heart lacking when it is beating fast?
Oxygen.
what is the name of the muscle just beneath the lungs called?
The diaphragm.
What are the lobes filled with in the lungs?
They are filled with small and spongy air sacs called alveoli.
Without what, would make the circulatory useless?
The heart.
What are the three things that the heart carries?
blood, nutrients, and oxygen.
What is the main part of the respiratory system?
Bringing oxygen and nutrients into the human body.
Approximately how many times does a human breathe in one day?
20,000 times.
What are the three blood vessels called?
The arteries, veins, and capillaries.
What is the most important muscle in the body?
The heart.
How many things need oxygen to survive?
What does the mucus substance collect?
germs and sticky products.