The Human Body Interactive PowerPoint

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The Human BodyInteractive PowerPoint

• Laura Goerner

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Respiratory System
Circulatory System
Digestive System
Muscular System
Skeletal System
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Digestive System
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Gross Cool Facts!
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Respiratory System
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Gross Cool Facts!
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Circulatory System
Menu
Gross Cool Facts!
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Muscular System
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Gross Cool Facts!
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Skeletal System
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Gross Cool Facts!
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Digestive SystemGross 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 SystemGross 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 SystemGross 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 SystemGross 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 SystemGross 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 semi-moveable
  joints in your body.

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Introduction to the Body Systems
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Organization in the Body

• Cell--gt smallest unit of life Ex. Blood cell
• Tissue--gt made of many similar cells Ex. Blood
  Tissue
• Organ--gt made of many similar tissues Ex. Heart
• Organ System--gt several organs working together
  Ex. Circulatory System

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TYPES OF TISSUE

• EPITHELIAL
• NERVE
• CONNECTIVE
• MUSCLE
• BLOOD

• Protects other tissue
• Sends/receives messages
• Supports/protects body
• Allows movement
• Carries oxygen, food through body

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Body Systems Overview

• Digestive

• Breaks down food into small bits for cells to use

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Pathway of Digestion
1. MOUTH- Digestion begins, starches broken
down (saliva and teeth)
2. ESOPHAGUS Food passes through (peristalsis)
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Pathway of Digestion

• STOMACH
• Chemical Mechanical digestion (proteins broken
  down)

• SMALL INTESTINE
• Most digestion happens, digestion is completed-
  find villi for absorbing nutrients

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Pathway of Digestion

• LARGE INTESTINE
• Stores eliminates undigested food

• ANUS
• Solid waste passed out

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Body Systems Overview

• Respiratory

• Lungs take in O2 which is combined w/ nutrients
  for energy

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Respiratory System

• Pathway of oxygen

• 1. Mouth/ nose
• 2. Trachea
• 3. Two bronchial tubes
• 4. Bronchi branches
• 5. Air sacs
• 6. Capillaries
• Blood picks up OXYGEN in capillaries of air sacs
• The waste CARBON DIOXIDE is dumped off

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Path of Oxygen through the Respiratory System
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Body Systems Overview

• Circulatory

• Blood transports oxygen from lungs to cell, and
  wastes from cell to lungs

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Circulatory System

• Pathway of Blood

• Blood is pumped by the heart carried by 3 types
  of blood vessels
• Arteries- carry blood away from heart (carries
  CO2)
• Veins- carry blood to heart (carries O2)
• Capillaries- tiny, thin walls so O2 and CO2 can
  pass through

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Body Systems Overview

• Nervous

• Receiving and sending messages

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Nervous System

• Stimulus Response Pathway

• Made of nerve cells (NEURONS)
• 1. Senses send signals (stimulus) to brain
• 2. Brain decides how to respond (response)
• 3. Nerves carry response to proper part

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Body Systems Overview

• Excretory

• Ridding body of wastes (water, heat, urine, CO2,
  salt)

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Excretory System

• LUNGS- excretes CO2, water, heat
• SKIN- excretes water, salt, heat
• KIDNEYS- excretes water, salt, urine

• Organs of Excretion

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Excretory System

• ANUS/LARGE INTESTINE- gets rid of feces (s0lid
  waste)

• Organ of elimination

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Body Systems Overview

• Reproductive

• Sex cells combine to make offspring (sperm egg
  fertilization)

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Body Systems Overview

• Endocrine

• Glands make and release chemical regulators into
  the blood hormones to respond to changes inside
  outside the body

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Endocrine System

• Pituitary- controls all other glands
• Thyroid- regulates metabolism
• Thymus- fights infection
• Adrenals- fights body stress
• Islets of Langerhans- Produces insulin to control
  blood sugar levels
• Gonads/Testes- makes sex cells

• GLANDS

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Body Systems Overview

• Muscular

• Allows body to move
• Muscles only contract (pull)- they dont push

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Muscular System Diagram
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Muscular System

• Types of muscles

• VOLUNTARY (skeletal)
• Can control them
• Are attached to bones
• Work in pairs

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Muscular System

• Types of muscles

• INVOLUNTARY (smooth)
• Cant control them
• Found in blood vessels, organs, digestive tract

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Muscular System

• Types of muscles

• Cardiac (Heart)
• Smooth, Involuntary

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Body Systems Overview

• Skeletal

• Protects organs, allows movement, makes cells

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Skeletal System

• Joints

• How do bones move?
• 3 type of joints
• Ball Socket- allows twisting (hips)
• Hinge- move in one direction (elbow)
• Slightly moveable- limited movement (vertebra
  ribs)

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Ball Socket Joint
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Hinge Joint
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Skeletal System

• Bones

• Blood cells made in marrow- have calcium

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Skeletal System

• Cartilage

• Softer, flexible bone

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Skeletal System

• Ligaments

• Holds bone together at joints

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Skeletal System

• Tendons

• Cordlike tissue that attaches muscle to bone

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