Muscles by linzhengnd

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									Muscles

12/1/2009
 7th grade
 Crockett
                                Muscles

   Questions                Notes
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Vocabulary words
                       Notes
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   Formulas


   Main Ideas               Notes
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  Possible Test     Notes
   Questions
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                                Notes
   Key Words


            Summary of the notes and information learned
                  3 Types
1. Skeletal:
• They are striped or “striated” and are
   responsible for moving bones move.
• skeletal muscle is linked to bone by bundles
   of collagen fibers known as tendons.
• Voluntary reaction
• Ex: Allow us to smile, bend our arms and legs
2. Cardiac Muscle-
• They are striated and only found in the heart.
• Involuntary reaction
• Ex: helps the heart continue beating

3. Smooth Muscle-
• They are found in the digestive organs and
    blood vessels
• Involuntary reaction
• EX: squeeze the bladder, contract blood vessels,
    move food through the digestive tract
            Tendons and Cartilage
Tendon- a tough yet
  flexible band of
  fibrous tissue. The
  tendon is the
  structure in your body
  that connects the
  muscle to the bones.
Cartilage- a stiff yet
  flexible connective
  tissue found in many
  areas in the bodies of
  humans and other
  animals, including the
  joints between bones,
  the rib cage, the ear,
  the nose, the elbow,
  and the knee.
• Connective tissue but
  does not have blood
  vessels
Ligaments
• Ligaments are fibrous bands or sheets of
   connective tissue linking two or more bones,
   cartilages, or structures together

• One or more ligaments provide stability to a joint
  during rest and movement

• Excessive movements such as hyper–extension or
  hyper–flexion, may be restricted by ligaments.
              Muscle Power
• You will have no longer that 10 minutes to
  complete the handout.
• Use the word bank to fill in the paragraph and
  your knowledge of the activities to fill in the
  chart at the bottom.
• When you are finished, make sure your name
  is on the top and turn it into your box.
                         Integument System

   Questions                Notes
                                                   Notes

Vocabulary words
                       Notes
                                        Notes                Notes
   Formulas


   Main Ideas               Notes
                                           Notes


  Possible Test     Notes
   Questions
                                                           Notes
                                Notes
   Key Words


            Summary of the notes and information learned
           Integument System
• Makes up about 16% of your body weight
• It contains glands, blood vessels, lymphatic
  vessels, nerves, and smooth muscle
• Contains 2 types of sweat glands, sebaceous
  (oil) glands, hair, and nails
                  Functions
• Protects internal organs and tissues
• Protects against infection and injury
• Prevents loss of fluids
• Regulates body temperature through sweat and
  blood flow
• Remove waste from body through perspiration
• Stores fat for fuel and insulation
• Sensory organ with receptors for touch, pressure,
  pain, heat, and cold
1. Epidermis-
                        3 Layers
• New skin cells are formed at
   the bottom and move to the
   top over approx. 2 wks to 1
   month.
• As new cells move up, the
   older continue to rise to the
   surface of your skin and die.
• Melanin is produced in the
   epidermis which creates the
   color of your skin.
• Every minute 30,000-40,000
   dead skin cells are shed off
   the surface of your skin!
2. Dermis-
• contains nerve endings,
   blood vessels, hair
   follicles, sweat glands,
   and oil glands.
• Contains collagen and
   elastin which are tough
   and stretchy
• Oil glands secrete sebum
   that spreads over the
   epidermis to keep it
   flexible and waterproof
3. Subcutaneous Layer
• Made mostly of fat and
   helps your body stay
   warm and absorb
   shocks, like if you were
   to fall down or bang into
   something.
• Helps hold your skin to
   all your tissues
   underneath it.
BrainPop!
Nails- protect the tips of the
  fingers and toes
• Modified hair that grow
  from nail roots or beds.
• During cell division(cell
  growth), root cells are
  filled with keratin that
  make them tough and
  plate-like.
• There are no nerve
  endings
• It takes 6 months to grow
  from cuticle to tip and
  grow faster than toenails
BrainPop!
• Each hair grows out of a tube
  in the skin called a follicle.
• Every follicle has its roots way
  down in the subcutaneous
  layer and continues up
  through the dermis.
• It is large columns of dead
  cells which are filled with a
  tough fibrous protein.
• Growth is caused by a rapid
  cell growth at the base of the
  follicle and color of hair is
  based on how much melanin
  you have in your skin.
• Sebum is released onto the
  hair giving it some shine and a
  little waterproofing.
                    The Skin
• Label the parts of the skin based on the word bank
  and complete the sentences at the bottom.
• You may use the green book: page 510
• You will be given 15 minutes
• Once you have finished, make sure your name is on
  the top and turn it in to your box.
Make it a great day
   Mustangs!

								
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