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What You’ll Learn
The major function of muscles
How to compare and contrast three types of muscles
How muscle action results in movement of body parts
https://mrscameronswiki.wikispaces.com/file/view/superficial-anterior-muscles.jpg/61639556/superficial-anterior-muscles.jpg
What you’ll learn/Vocabulary Muscles: organs that relaxes and contracts to
allow movement of bones and body parts
Voluntary muscles: muscles, such as face
muscles, that can be consciously controlled
Involuntary muscles: muscles, such as diac
muscles, that can’t be consciously controlled
Skeletal muscles: striated, voluntary muscles
that muscles that move bones
What you’ll learn/Vocabulary
Tendon: thick band of tissue that attaches muscle to bone
Smooth muscles: non-striated, involuntary muscles that move many internal organs
Cardiac muscle: striated, involuntary muscle that is only found in the heart
Why It’s Important
The muscular system is responsible for how you move and the production of heat in your body. Muscles also give your body its shape.
http://prometheus.med.utah.edu/~bwjones/C1276349108/E347011287/Media/Salt%20Lake%20Marathon%20start.jpg
Moving the human body
A muscle is an organ that can relax and contract to allow movement.
http://www2.fcsconline.org/staff/gradyt/muscular-anatomy-front.jpg
Muscle control
Muscles that your able to control are Voluntary muscles.
http://healthkut.com/blog/wp-content/uploads/2010/01/muscles-voluntary1.jpg
Muscle control
Muscles that your NOT able to consciously control are Involuntary muscles.
http://healthkut.com/blog/wp-content/uploads/2010/01/muscles-2.jpg
Levers-Your Body’s Simple Machines
Muscles work like a simple machine called a lever.
Your body uses the three different types of levers for different movements.
First-class levers, second-class levers, and third-class levers are the three types of levers.
http://lpc1.clpccd.cc.ca.us/lpc/DivisionIII/images/DSNT/Levers.jpg
Types of muscle tissue
Skeletal muscle tissue: is attached to bones by tendons, is associated with the body's voluntary movements. It is a striated muscle. Unlike cardiac muscle, the cells are not branched.
Types of muscle tissue
Cardiac muscles: it is found in the heart. Cells are joined to one another by infused discs which allow the synchronization of the heart beat. Cardiac muscle is branched, striated muscle.
http://kentsimmons.uwinnipeg.ca/cm1504/15lab42006/CardiacMuscle.jpg
Types of muscle tissue
Smooth muscle: is found in various parts of the body such as the arteries, the bladder, the digestive tract, as well as in many other organs.
http://www.bergen.cc.nj.us/Faculty/rdill/Human_Bio/HB_lab_images/smoothmuscle1.gif
Muscle action and energy Whenever you move
any of your body parts you muscles us an energy called glucose.
When bonds in glucose brake, the muscle retracts.
Muscles need to rest after all of glucose is used up.
Glucose is restored by the blood stream.
Exercise = bigger muscles
No exercise = smaller muscles
Glucose = blood sugar
http://www.biochem.arizona.edu/classes/bioc462/462bh2008/462bhonorsprojects/462bhonors2007/gsantarelli/glucose.gif
Muscles at work
Skeletal muscle movements are the result of pairs of muscle working together.
http://www.shen-nong.com/eng/images/lifestyles/qigong/img14e.gif