The document discusses the muscular system and related topics. It defines key muscular system terms like actin, myosin, muscles types. It describes common muscular disorders like myotonia and myopathy. It provides facts about muscle composition, functions, and anatomy. Diagrams show muscle contraction and fiber structure. Common conditions affecting muscles are defined, such as cerebral palsy and muscular dystrophy. Causes of muscle soreness are outlined. The heart is described as the most important muscle that pumps blood through contraction of cardiac muscle fibers.

1. THE MUSCULAR
SYSTEMBY: LILLY COURY AND TOBIN LOCKE

3. Disease
Myotonia
Myotonia congenital is a disorder
that affects muscle contraction
movement. Myotonia Congenital
is estimated to affect 1 in
100,000 people worldwide.

4. Myopathy
Myopathy almost always causes loss of muscle strength.
Some patients also have rashes or breathing problems, or both
- See more at: http://www.rheumatology.org/I-Am-A/Patient-
Caregiver/Diseases-Conditions/Inflammatory-
Myopathies#sthash.x97B6lUh.dpuf

5. THE MUSCULAR SYSTEM
ACTIN- A GLOBULIN THAT IS PRESENT IN MUSCLE PLASMA AND THAT IN
CONNECTION WITH MYOSIN PLAYS AN IMPORTANT ROLE IN MUSCLE
CONTRACTION.
BELLY- APPETITE OR CAPACITY FOR FOOD, GLUTTONY.
CARDIAC MUSCLE-THE MYOCARDIUM.
EXTENSOR-A MUSCLE THAT SERVES TO EXPAND OR STRAIGHTEN A PART
OF THE BODY.
FATIGUE- WEARINESS FROM BODILY OR MENTAL EXERTION.
MYOSIN- THE PRINCIPLE CONTRACTILE PROTEIN OF MUSCLE.
TENDON- A REINFORCING STRAND IN PRESTRESSED CONCRETE.

6. •https://m.youtube.com/watch?
v=rMcg9YzNSEs
•This video explains the
muscular system in 6 minutes

7. FUN FACTS
Muscles make up about 40% of total body weight.
The smallest muscles, like the smallest bones, are found in the middle ear, some of these are the tensor
tympani (connected to the ear drum) and the Stapedius.
Muscles cannot push, they can only pull. The reason the arm can push is muscles in the back of the arm
pulling on the elbow!
The strongest muscles in the body? Pound for pound, it's the muscles that you chew with - called the
masseters!
Humans are born with all of the muscle fibers they will ever have. They don't grow new fibers, they just
grow thicker.
If all of the muscles in the body could all pull in one direction, it would create a force of 25 tons!
Smiling takes 17 muscles in the face, while frowning takes 43!
The heart is made up of muscle, called cardiac muscle. This muscle works all by itself with no thought. The
heart beats anywhere from 60 to 100 times a minute, every minute, of every day in a human life!
http://www.softschools.com/facts/human_body/muscles_facts/173/

9. https://www.google.com/url?sa=i&source=web&cd=&q=muscle%20jokes&ved=0ahUKEwi0tPGXh6rMAhUHXh4KHVVdCVMQjB0IB
g&url=https%3A%2F%2Fwww.pinterest.com%2Fdeeahearty%2Fme-md%2F&psig=AFQjCNF51-bMt2M0X6-P_QBmB-
yQ_fuwag&ust=1461682871931779&rct=j&cad=rjt
Yes, your face has
muscles too. It takes
17 muscles to smile,
but 43 muscles to
frown.

10. Vocabulary
Flexor- a muscle that serves to flex a part of the body.
Ligament- a tie or bond.
Muscle Fiber- one of the structural cells of a muscle.
Myoifbril- a contractile febrile of skeletal muscle
composed of mainly of a acitin myosin.
Myology- the science or branch or anatomy dealing
with muscles.
Myosin- the principal contractile of a muscle.
Skeletal Muscle- a muscle that is connected at either
both extremities with a bone and consists of
elongated multinucleated , transversely striated,
skeletal muscle fibers, together with connective
tissue, blood vessels and nerves.
Smooth Muscle-muscle tissue in the walls of
vicera and in blood cells.
Dictionary.com

11. What is a Muscle?
A muscle is a band of fibrous tissue in a human
or animal body that has the ability to contract
or maintaining the position of the human body.
You have approximately 650 muscles in
your body.

12. Wwww.slideshare.net

13. Parts of a Muscle

14. Myosin-the principal contractile protein of muscle.
Motor Neurons- a nerve cell at conducts impulse to
a muscle gland or other effector.
Acetylcholine- transmits nerve impulses.
Www.dictionary.com
Words to Know
Asln.mda.org

15. https://m.youtube.com/watch?v=e3Nq-P1ww5E
How Muscles Contract

17. Cerebral Palsy
Beyonddisable.com
Cerebral Palsy is a disorder
of movement, muscle tone,
or posture caused by an
immature development of
the brain, most often before
birth.

18. Muscular Dystrophy
A disease that causes weakness
and a loss of muscle mass. This
often happens before birth
with no cure.
Mayoclinic.org

19. What Makes Sore Muscles
A sore muscle is caused by working a
muscle so much that it leaves a
microscopic tear in the tissue which
could lead to bruising.
https://www.google.com/url?sa=i&source=images&cd=&ved=0ahUKEwjwybXM1prMAhWIeSYKHVj
YBfAQjB0IBg&url=http%3A%2F%2Fwww.australianmarathonreviews.com%2Ftrialing-a-new-
treatment-for-a-calf-muscle-
tear%2F&psig=AFQjCNEU51ldOieRJqt2IDNuA0i7p4USeg&ust=1461154342699596&rct=j

20. https://www.google.com/url?sa=i&source=images&cd=&ved=0ahUKEwi1jf_O8qnMAhUJox4KHSkfBHQQjB0IBg&url=http%3A%2
F%2Fwww.burleighphysio.com.au%2Farticle%2Fcorksmuscle-contusionsbruises%2F&psig=AFQjCNEIoKFWYAPQspbF_qFROyE-
cn0YGg&ust=1461677324814065&rct=j
Bruises
When the muscle is squashed or
strained all the blood will rush to
the wound which causes a
bruise.

21. The Heart
The heart is made of cardiac
muscles which are involuntary
meaning that they operate on
their own.You can only live 15
seconds without a heart which is
the most important muscle in
your body. The muscles contract
heart so that blood can go in and
out.

22. Credits
Griggosortho.com
Www.youtube.com
Www.slideshare.net
Alsn.mda.org
Previous.com