The Human Body

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The Human Body
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10 Systems of the Body

• Skeletal
• Muscular
• Nervous
• Circulatory
• Respiratory
• Immune
• Digestive
• Urinary
• Hormonal
• Reproductive

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For each body system, it is important that you
understand its functions and structures.

• Function- what does it do or its purpose???
• Structure what is it made up of ???

For example, what are the functions and
structures of the following?
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The Skeletal System

• Functions
• Movement
• Support
• Protection

Structures 1. 206 Bones
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Fun Important Facts

• The femur is the longest and strongest bone in
  the body
• The most common broken bone is the clavicle
  (collarbone)

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The Muscular System

• Functions
• Movement
• Protection

Structures 1. 640 Muscles
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Fun Important Facts

• The strongest muscle in your body is the gluteus
  maximus
• Eye muscles are the busiest (they move over
  100,000 times a day)

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The Nervous System

• Functions
• Controls everything you do
• Sends information through nerves

• Divisions of the Nervous System
• Brain and Spinal Cord (Central Nervous System)
• 2. Nerves (The Peripheral Nervous System)

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Your Brain!!!!!!
Cerebellum Balance and movement Frontal Lobe
controls, mood, motivation, aggression Parietal
Lobe Controls sensory information Occipital
Controls Vision Temporal-controls sense of smell,
hearing, memory, thought, and judgment.
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Your nervous system is so quick and smart, it
says to your hand hey moron, thats hot so you
know to move your hand.
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Fun Important Facts

• Message are sent at speeds of 250 miles
• The average brain weights 3 pounds

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The Respiratory System

• Functions
• Breathing
• Gets oxygen to the cells

Structures Nose (warms air) Pharynx (upper
throat) Larynx (voice box) Trachea
(windpipe) Bronchi (tubes that bring air to
lungs) Lungs (exchange air) Diaphragm (muscle
that separates lungs from
stomach)
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Fun Important Facts

• Cilia stops working for 15 minutes when you
  smoking
• The nose can remember 50,000 different smells

Cilia are hair like structures that line your
lungs. They help move germs and other armful
substances out of your body.
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The Cardiovascular System

• Functions
• Pumps blood through body

Structures Heart Blood Veins Arteries Capillaries
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Fun Important Facts

• Your blood vessels are 80,000 miles long
• A drop of Blood has 250 million red blood cells.

NY to LA is about 3,000 miles. So you could drive
there and back 12 times.
80,000 miles 3 times around the earth
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4 blood types A, B, AB, and O
Type You Can Give Blood To You Can Receive Blood From
A A  AB A  A-  O  O-
O O  A  B  AB O  O-
B B  AB B  B-  O  O-
AB AB Everyone
A- A  A-  AB  AB- A-  O-
O- Everyone O-
B- B  B-  AB  AB- B-  O-
AB- AB  AB- AB-  A-  B-  O-
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The Hormonal System

• Functions
• Regulates body
• Secretes hormones

• Structures
• Pituitary Gland (controls growth)
• Thyroid Gland (controls metabolism)
• Adrenal Glands (produces adrenaline)
• Pancreas (Secretes insulin)
• Ovaries (produce estrogen)
• Testes (produce testosterone)

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Fun Important Facts

• The tallest person in history was Robert Wadlow
  at 8 feet 11 inches.
• Controls metabolism, energy, and moods

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The Urinary System

• Functions
• Cleans your blood
• Eliminates the waste as urine
• Structures
• Kidneys (filter blood)
• Bladder (collects urine from kidneys)
• Ureters (carries urine from kidneys to bladder)
• Urethra (tube that carries it out of body)

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Fun Important Facts
Your Bladder can hold 2 cups of urine for 5
hours.
Your blood goes through your kidneys 400 times a
day
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The Digestive System

• Functions
• Breaks down food
• Eliminates waste (poop ?)

• Structures
• 1.Mouth (breaks down food)
• 2 Salivary Glands (Secretes saliva)
• 3 Tongue (prepares food to be swallowed)
• 4 Esophagus (tube food passes through)
• 5 Stomach (food is stored and mixed with juices)
• 6 Small Intestine (absorbs the food)
• 7 Large Intestine (removes water from food and
  eliminates waste)

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Fun Important Facts

• The small intestine is 21 feet long
• We produce 3 pints of Saliva every day

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The Immune System

• Functions
• Kills and Fights off diseases
• Helps keep body healthy and strong
• Structures
• Tonsils (catch incoming germs)
• Lymph Nodes (filter foreign objects)
• Spleen (destroys old and damaged cells)
• Bone Marrow (produce blood cells)

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Fun Important Facts

• Only 20 of people wash their hands after using
  the restroom! GROSS

• Laughing can make your immune system stronger
• ( 6 year olds laugh over 300 times a day while
  adults laugh 15-20 times.)

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The healthier you are, the healthier your immune
system is
Vs.
Vs.
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The human body is an amazing thing!Take good
care of it because you only get one.