MUSCLES
and
SKIN
* A muscle is an organ that can relax, contract,
and provide force to move bones and body parts.
• Voluntary muscles are muscles that YOU control

• Involuntary muscles are muscles you cannot
control.
– The muscles in t...
• Skeletal muscles are muscles that move bones
• Tendons are thick bands of tissue that attach
bones to muscles
• Cardiac muscle is muscle found only in the heart
* On average, the cardiac muscle contracts
70 times per minute every day of your life.
• Smooth muscle is involuntary muscle that
controls movements of internal organs
• Skin is the thin layer of tissue which forms the
outer covering of the body
=> The skin is the largest organ of the body...
• Skin is made up of three layers of tissue –
dermis, epidermis, and a fatty layer called the
hypodermis
• The epidermis is the outermost, thinnest layer
of skin.
• The dermis is the layer of cells directly under the
epidermis
The dermis is a thick
layer and it contains
blood vessels,...
• Below the dermis is a fatty layer called the
hypodermis

The hypodermis is made up of fat and
connective tissue which is...
• Melanin is a pigment
that protects skin and
gives it color

- melanin is produced
by cells in the epidermis
• Functions of the skin:
=> protection
=> sensory response (touch)
=> formation of vitamin D (from sunlight)
=> regulation...
Muscle sand skin
Muscle sand skin
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Muscle sand skin

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Muscle sand skin

  1. 1. MUSCLES and SKIN
  2. 2. * A muscle is an organ that can relax, contract, and provide force to move bones and body parts.
  3. 3. • Voluntary muscles are muscles that YOU control • Involuntary muscles are muscles you cannot control. – The muscles in the heart and internal organs are involuntary muscles
  4. 4. • Skeletal muscles are muscles that move bones
  5. 5. • Tendons are thick bands of tissue that attach bones to muscles
  6. 6. • Cardiac muscle is muscle found only in the heart
  7. 7. * On average, the cardiac muscle contracts 70 times per minute every day of your life.
  8. 8. • Smooth muscle is involuntary muscle that controls movements of internal organs
  9. 9. • Skin is the thin layer of tissue which forms the outer covering of the body => The skin is the largest organ of the body.
  10. 10. • Skin is made up of three layers of tissue – dermis, epidermis, and a fatty layer called the hypodermis
  11. 11. • The epidermis is the outermost, thinnest layer of skin.
  12. 12. • The dermis is the layer of cells directly under the epidermis The dermis is a thick layer and it contains blood vessels, nerves, muscles, oil glands and sweat glands
  13. 13. • Below the dermis is a fatty layer called the hypodermis The hypodermis is made up of fat and connective tissue which is responsible for binding skin to the tissue beneath it.
  14. 14. • Melanin is a pigment that protects skin and gives it color - melanin is produced by cells in the epidermis
  15. 15. • Functions of the skin: => protection => sensory response (touch) => formation of vitamin D (from sunlight) => regulation of body temperature (sweat) => ridding the body of waste (also sweat)

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