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Muscular System. Terminology (pg. 167) myo-fasciculus sarco-platys iso-tonos syn--trophy tetanoscaput.

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Presentation on theme: "Muscular System. Terminology (pg. 167) myo-fasciculus sarco-platys iso-tonos syn--trophy tetanoscaput."— Presentation transcript:

1 Muscular System

2 Terminology (pg. 167) myo-fasciculus sarco-platys iso-tonos syn--trophy tetanoscaput

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5 Introduction Over 600 muscles Lots of mitochondria and blood vessels 45% of body weight is muscles

6 Functions 1.Locomotion: move skeleton

7 2. Posture: some muscles are always partially contracted

8 3. Maintain body temperature by producing heat

9 4.Respiration and circulation

10 5.Guarding entrances and exits (sphincters)

11 6.Movement along internal passageways (peristalsis)

12 7.Communication (verbal and body language)

13 Characteristics 1. Excitability- ability to respond

14 2.Contractibility- ability to shorten

15 3.Extensibility- ability to stretch

16 4.Elasticity-ability to return to previous length

17 Types-Skeletal striated-appear lined voluntary lots of nuclei in the cell

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19 Smooth Non-striated Involuntary Spindle shaped

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21 Cardiac Striated Involuntary Branched intercolated disks

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