Skin, Muscles,

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Skin, Muscles, Bones

• By Mr. Hunter

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Bones

• The skeletal system supports the body and
  protects delicate parts.
• Press your skin in various parts of your body.
  Where can you not feel bones? What organs are
  protected by what bones?

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Which organs do these bones protect?
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Why are bones important to you???

• Protect vital organs
• Provide a _____ that supports other body systems
• Give the body its shape
• Allow for _____ to occur

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Bones

• Bones are made of living _____, just as our
  muscles and skin are, so they can _____
  themselves.

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• There are a little over _____ bones in the human
  body. Everyone, however has a different number of
  bones.

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Are teeth bones?

• No! Teeth cannot repair themselves!
• When we get a hole in the _____, it does not
  repair itself.

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The Spine

• The adult spine is made up of 25 separate bones
  called _____ .

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Why is the spine important to you?

• It protects the spinal cord.
• It is a support and attachment for other bones.
• It absorbs shock.
• It gives us flexibility in movement.

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Label These Bones

• Cranium Sternum Scapula Ribs
  Vertebrae Pelvis Carpals Metacarpals
  Phalanges Tarsals Metatarsals
  Patella Fibula Tibia Frontal
  Temporal Parietal Occipital Radius
  Humerus Ulna Patella Fibula
  Tibia Femur Zygomatic Arch Maxilla
  Mandible
• Mastoid Process Calcaneus Clavicle

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• http//www.bbc.co.uk/science/humanbody/body/factfi
  les/joints/pivot_joint.shtml

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Muscles

• Sit in a chair with your feet on the floor.
• Place your hand around your leg. Straighten one
  leg. Repeat several times.
• How did your muscles change during this activity?

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Every movement of your body

• from
• the beating of your heart
• the movement of food down your throat
• blinking of your eyes
• is controlled by
• MUSCLES!!!!!!!!!!!!!

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Skeletal muscle

• Skeletal muscle is attached to your _____
• Skeletal muscle, like all muscle, is made up of
  long f_____ .
• Skeletal muscles can be described as _____ .

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Tendons
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Smooth Muscle

• Smooth muscles are found in the _____ tract and
  in the walls of blood ______ (arteries and
  veins).
• Smooth muscles are ______ .

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Cardiac Muscle

• Cardiac muscle is found in the _____ .
• Cardiac muscles are _____ .

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How do muscles work?

• Muscles work in _____ .
• Flexor _____________________
• Extensor __________________