1. Muscular System

2. Frontals
Trapezius
Trapezius
Deltoid
Deltoid
Pectoral
Triceps
Triceps
Biceps
Biceps
Latissimus Dorsi
Abdominals
Gluteus Maximus
Sartorius
Hamstring
Quadriceps
Gastrocnemius
Gastrocnemius
Achilles Tendon

3. Vocabulary
Muscular System: the group of tough tissues that make you body parts move.
Contract: shortening of the muscle
Extend: lengthening of the muscle

4. How do muscles work? You have over 600 muscles in your body
They all work in pairs
When one contracts the other extends
Describe what happens when you bend and straighten your arm…
Your bicep pulls on your radius
Your triceps extend
Your triceps pull on your ulna
Your bicep extend

5. Diagram of a Muscle Bone Blood Vessel Muscle Cell Muscle Cell Bundle
Tendon
Muscle Body

6. Kinds of Muscle Smooth Can be found in organs
Stomach
Intestines
Can NOT be controlled voluntarily. You don’t have to think about moving your food through your digestive tract after you swallow

7. Kinds of Muscle Cardiac Only found in one place in the body THE HEART
Controlled by the brain
Some people after years of training are able to raise and lower their heart rate voluntarily

8. Kinds of Muscle Skeletal Attached to bone Allow you to move your body
Skeletal muscles makeup about 40% of your body weight

9. Problems with the Muscular System
Description
Treatment
Pulled or Torn Muscle
Muscle tears from bone
Rest / Ice for minor tears
Surgery for major tears
Strain
Soreness due to overwork / over stretched muscle or tendon
Rest / Application of ice and heat in 20 minute intervals
Cramp
Muscle contracts and is unable to relax, most commonly due to lack of water
Drink water / Massage / Application of heat

10. Problems with the Muscular System
Description
Treatment
Tendonitis
Overstretched or torn tendon
Rest and ice for minor surgery for major
Muscular Dystrophy
And inherited disorder in which the muscles become weaker over time and eventually the person is no longer able to walk or stand
No cure