Muscular System
Created by Elizabeth Formby
Major Organs
 Muscles
 You have more than 600
muscles
 You have three types of
muscles
 Skeletal (voluntary)
 Smooth(involuntary)
 Cardiac
 Tendons
 Tendons connect muscles
to bones
Skeletal Muscles
 Also called voluntary muscles because you chose when
to move them
 Most common type of muscle
 Contract quickly
 Tire easier than involuntary muscles
 Connects to bones
 Type of muscle people usually think of as muscles
Skeletal Muscle
Smooth and Cardiac Muscle
Smooth Muscle
 Also known as involuntary
muscle because you don’t
choose when to move them
 Slowly contract and relax
 Found in internal organs
Cardiac Muscle
 Found only in the heart
 Contracts about 70 times
per minute
Smooth and Cardiac Muscle
Smooth Muscle
Cardiac Muscle
Functions
 Skeletal muscles contract to move your bones.
 Cardiac muscles contract to pump blood.
 Smooth muscles help your other organs with their
functions.
Interacts With
 Skeletal system
 Your muscles contract to move your bones
 Nervous system
 Your brain tells when to move
 Cardiovascular system
 Your heart is a muscle
 Respiratory system
 Your diaphragm is a muscle that helps you breath
How Muscles Move Our Bodies
How it Works
 The muscular and skeletal
systems work together as a
lever.
 The muscles provide force
for body movement by
contracting.
 Your joints act as a
fulcrum.
 And your bones act as the
rod.
Works Cited
 Images
 http://www.ourhealthnetwork.com/UserFiles/Image/Biceps_Tendon_Anat
omy.jpg
 http://narensfitnesstips.weebly.com/uploads/3/2/6/9/3269055/447896.j
pg?190
 http://cnx.org/content/m46676/latest/2006_Heart_Musculature.jpg
 http://o.quizlet.com/i/wP_clB67NVKpAYmqWHrG-Q_m.jpg
 http://st1.health.india.com/wp-content/uploads/2013/12/armmuscles.gif
 Video
 http://www.youtube.com/watch?v=jxk5tFiGVSE