The Human Body. Created by Bethany Eggman for EDTE 232. Nervous System. Respiratory System. Five Senses. Skeletal System. Digestive System. Reproductive System. Circulatory System. CLICK ON ANY BUTTON TO LEARN ABOUT THE HUMAN BODY. Nervous System
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for EDTE 232
CLICK ON ANY BUTTON TO LEARN ABOUT THE HUMAN BODY
The adult human brain weighs between
1300 g and 1400 g (approximately 3 lbs).
The Automatic Nervous System is most
important in two situations:
1. In emergencies that cause stress and require
us to "fight" or take "flight" (run away) and
2. In non-emergencies that allow us to "rest"
The digestive system is
a series of hollow organs
joined in a long, twisting
tube from the mouth to the
Digestion involves the mixing
of food, its movement through
the digestive tract, and
chemical breakdown of the
large molecules of food into
Our food and drink must
be changed into smaller
molecules of nutrients before
they can be absorbed into
the blood and carried to
cells throughout the body.
The heart beats around 3 billion times in the average
About 8 million blood cells die in the human body every
second, and the same number are born each second.
Within a tiny droplet of blood, there are some 5 million red
blood cells, 300 000 platelets and 10 000 white cells.
It takes about 20 seconds for a red blood cell to circle the
Red blood cells make approximately 250,000 round trips of
the body before returning to the bone marrow, where they
were born, to die.
Red blood cells may live for about 4 months circulating
throughout the body, feeding the 60 trillion other body
The primary function of the respiratory system is to supply
the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. The respiratory system does this through breathing. When we breathe, we inhale oxygen
and exhale carbon dioxide. This exchange of gases is the
respiratory system's means of getting oxygen to the blood.
Everybody has them, but not many people talk about them. Some people call them
their "privates," and others just kind of blush and whisper, "down there." But the truth
is that your reproductive parts aren't any weirder or any more cause for
embarrassment than say, your feet or your eyes - it's just that they're covered up
most of the time. The reproductive system gets its name from the fact that its parts
allow a person to reproduce, or have a child.
The virtual body
A Look Inside the Human Body
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