MUSCLE SYSTEM

MUSCLE SYSTEM

1. Function:

   • Hold body erect and make movement possible.
     • Generate body heat.
       • Moving food through digest system.
         • Assisting with blood flow.

2. Structure:

   • Muscle fibers
     • Long, slender cells that make up muscle.
       • Consist group of fibers that are bound together by connective tissue.
   • Fascia
     • Band of connective tissue that envelops, separates or bind together muscle.
       • Flexible to allow movement.
   • Tendons
     • Narrow band.
       • Nonelastic, Denses and Fibrous connective tissue.
     • Attach muscles to bone.

3. Type:

   • 1. Skeletal muscle
     • Attach to bone.
       • Body motion possible.
         • Voluntary
           • Striated
   • 2. Smooth muscle
     • Located to walls of internal organs.
       • Move and control flow of fluids.
         • Involuntary
           • Nonstriated
   • 3. Myocardial muscle
     • Form muscle walls of heart.
       • Constant contraction and relaxation.
         • Involuntary
         • Muscle innervation
           • Impulse transmitted by motor nerve and stimulation stop.
         • Contraction: Tightening muscle.
         • Relaxation
           • Return to original form and become longer and thinner.

4. Contrasting muscle motion:

   • Flexion
   • Abduction
   • Adduction
   • Extension

5. How muscle are named?

   • Origin
   • Insertion
   • Action
   • Location
   • Fiber direction
   • Number division
   • Size or shape

6. Muscle function:

   • Head
     • Temporalis
     • Frontalis
     • Masseter
   • Trunk
     • Rectus abdominis.
     • External / internal oblique.
     • Pectoralis major.
   • Shoulder and arm
     • Deltoid, trapezuis. biceps brachii and triceps brachii.
   • Legs
     • Quadriceps fermoris
     • Hamstring group
     • Gastrocnemirs

7. Medical specialties:

   • Exercise physiologist, neurologist and occupational therapist.

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