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The Human Body
Interactive PowerPoint
Mr. Wagner
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Respiratory System
Integumentary System
Digestive System
Reproductive System
Skeletal System
Nervous System
Endocrine System
Excretory System
Immune System
Circulatory System
Muscular System
Digestive System
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Gross & Cool Facts!
Respiratory System
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Gross & Cool Facts!
Circulatory System
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Gross & Cool Facts!
Muscular System
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Gross & Cool Facts!
Skeletal System
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Gross & Cool Facts!
Nervous System
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Gross & Cool Facts!
Reproductive System
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Gross & Cool Facts!
Integumentary System
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Gross & Cool Facts!
Immune System
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Gross & Cool Facts!
Endocrine System
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Gross & Cool Facts!
Excretory System
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Gross & Cool Facts!
Digestive System
Gross and Cool Facts!
• HOW LONG ARE YOUR INTESTINES? At least 25 feet in
an adult. Be glad you're not a full-grown horse -- their
coiled-up intestines are 89 feet long!
• Chewing food takes from 5-30 seconds
• Swallowing takes about 10 seconds
• Food sloshing in the stomach can last 3-4 hours
• It takes 3 hours for food to move through the intestine
• Food drying up and hanging out in the large intestine can
last 18 hours to 2 days!
• Americans eat about 700 million pounds of peanut butter.
• Americans eat over 2 billion pounds of chocolate a year.
• In your lifetime, your digestive system may handle about 50
tons!!
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Respiratory System
Gross and Cool Facts!
• Your lungs contain almost 1500 miles of airways
and over 300 million alveoli.
• Every minute you breathe in 13 pints of air.
• Plants are our partners in breathing. We breathe
in air, use the oxygen in it, and release carbon
dioxide. Plants take in carbon dioxide and
release oxygen. Thank goodness!
• People tend to get more colds in the winter
because we're indoors more often and in close
proximity to other people. When people sneeze,
cough and even breathe -- germs go flying!
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Circulatory System
Gross and Cool Facts!
• The body of an adult contains over 60,000 miles
of blood vessels!
• An adult's heart pumps nearly 4000 gallons of
blood each day!
• Your heart beats some 30 million times a year!
• The average three-year-old has two pints of
blood in their body; the average adult at least
five times more!
• A "heartbeat" is really the sound of the valves in
the heart closing as they push blood through its
chambers.
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Muscular System
Gross and Cool Facts!
• You have over 30 facial muscles which
create looks like surprise, happiness,
sadness, and frowning.
• Eye muscles are the busiest muscles in
the body. Scientists estimate they may
move more than 100,000 times a day!
• The largest muscle in the body is the
gluteus maximus muscle in the buttocks.
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Skeletal System
Gross and Cool Facts!
• The human hand has 27 bones; your face has
14!
• The longest bone in your body? Your thigh
bone, the femur -- it's about 1/4 of your height.
The smallest is the stirrup bone in the ear which
can measure 1/10 of an inch.
• Did you know that humans and giraffes have the
same number of bones in their necks? Giraffe
neck vertebrae are just much, much longer!
• You have over 230 moveable and semimoveable joints in your body.
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Endocrine System
Gross and Cool Facts!
• The endocrine system is under the control of the nervous system
• You've got over 30 of these amazing hormones busily orchestrating
and regulating such things as:
– when you feel hungry or full
– how you sleep
– your body temperature
– how you break down and utilize the food you eat and whether
you are fat or thin
– when you start puberty and how long it takes
– how you handle stress
– how much adrenaline you have in an emergency situation
– even how and when you grow
– It also makes you smelly, greasy, and gives you the ability to
mother or father a child
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Immune System
Gross and Cool Facts!
• A weakened immune system is NOT a cause of
the common cold.
• The No. 1 way to boost your immune system is
reducing stress
• Laughing lowers levels of stress hormones and
strengthens the immune system. Six-year-olds
laugh an average of 300 times a day. Adults only
laugh 15 to 100 times a day.
• Vitamin C helps, too, if you don’t pee it out
• Over 90% of diseases are caused or
complicated by stress.
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Integumentary System
Gross and Cool Facts!
• People with higher number of moles tend to live longer
than people with lesser number of moles.
• The fastest growing nail is on the middle finger. And the
nail on the middle finger of your dominant hand will grow
the fastest of all. Why is not entirely known, but nail
growth is related to the length of the finger, with the
longest fingers growing nails the fastest and shortest the
slowest.
• Human hair is virtually indestructible. Aside from it’s
flammability, human hair decays at such a slow rate that
it is practically non-disintegrative. Hair cannot be
destroyed by cold, change of climate, water, or other
natural forces and it is resistant to many kinds of acids
and corrosive chemicals
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Nervous System
Gross and Cool Facts!
• The brain itself cannot feel pain. While the brain
might be the pain center when you cut your
finger or burn yourself, the brain itself does not
have pain receptors and cannot feel pain.
• The brain is much more active at night than
during the day.
• The brain operates on the same amount of
power as 10-watt light bulb. The cartoon image
of a light bulb over your head when a great
thought occurs isn’t too far off the mark. Your
brain generates as much energy as a small light
bulb even when you’re sleeping.
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Just for fun!
Reproductive System
Gross and Cool Facts!
• Every human spent about half an hour as a single cell.
• Babies are born with 300 bones, but by adulthood the
number is reduced to 206.
• A woman never runs out of eggs. At birth she has
between 1 and 2 million potential eggs (follicles) and by
puberty has 300,000 to 400,000 viable eggs (follicles)
that can be fertilized.
• The male scrotum hangs outside the body since the
internal body temperature is too high and will kill the
sperm.
• About 500 million sperm mature every day in a healthy
male.
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Excretory System
Gross and Cool Facts!
• Approximately 75% of human waste is made of
water.
• Earwax production is necessary for good ear
health. While many people find earwax to be
disgusting, it’s actually a very important part of
your ear’s defense system. It protects the
delicate inner ear from bacteria, fungus, dirt and
even insects. It also cleans and lubricates the
ear canal.
• Tears and mucus contain an enzyme (lysozyme)
that breaks down the cell wall of many bacteria.
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Just for Fun
Gross and Cool Facts!
• Cna yuo raed tihs? I cdnuolt blveiee taht I cluod
aulaclty uesdnatnrd waht I was rdanieg. The
phaonmneal pweor of the hmuan mnid,
aoccdrnig to a rscheearch at Cmabrigde
Uinervtisy, it dseno’t mtaetr in waht oerdr the
ltteres in a wrod are, the olny iproamtnt tihng is
taht the frsit and lsat ltteer be in the rghit pclae.
The rset can be a taotl mses and you can sitll
raed it whotuit a pboerlm. Tihs is bcuseae the
huamn mnid deos not raed ervey lteter by istlef,
but the wrod as a wlohe. Azanmig huh?
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