The Muscular system

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.

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Muscle control

Muscles that your able to control are Voluntary muscles.

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Muscle control

Muscles that your NOT able to consciously control are Involuntary muscles.

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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.

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The endBy: Miles Bullock, madison holiday, Emily Caviglia , and christain castro