Muscular system
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Muscular System PowerPoint PPT Presentation


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Muscular System. What’s this?. What’s this?. Canker sore! Shallow ulcers in the mouth What causes them? Stress or tissue trauma Citrus can trigger or worsen symptoms B12, zinc, iron deficiency Different than cold sores. Review. Review. Producing Movement Maintain posture and position

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Muscular System

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Muscular system

Muscular System


What s this

What’s this?


What s this1

What’s this?

  • Canker sore!

    • Shallow ulcers in the mouth

  • What causes them?

    • Stress or tissue trauma

    • Citrus can trigger or worsen symptoms

    • B12, zinc, iron deficiency

    • Different than cold sores


Review

Review


Review1

Review

  • Producing Movement

  • Maintain posture and position

  • Stabilize joints

  • Generate heat


Producing movement

Producing Movement

  • Obvious here, muscles create movement

  • Muscle create the ability to walk, swim, run

  • Circulate blood, maintain blood pressure

  • Force food through intestines/stomach


Maintain posture position

Maintain Posture/Position

  • Everybody Stand up!

  • Remove the shoe of your dominant foot

  • Balance on your dominant foot for 1 minute

  • Notice the slight twitches of your foot to maintain balance


Stabilizing joints

Stabilizing Joints

  • Muscles/tendons cross the joints

    • EX: Shoulder/Hip

  • Extremely important for unstable joints


Generate heat

Generate Heat

  • In any energy system, there are by product

  • When you exercise, what happens to your body?

    • Cars- Exhaust

    • Exercise-heat


Skeletal muscle

Skeletal Muscle

  • Attaches to bone via tendons

    • Attaches to skin in the face

  • Voluntary from nervous system

  • Striated muscle (obvious stripes)

  • Contracts quickly, but also fatigues quickly


Type i v type ii

Type I v. Type II

  • Type I – Slow twitch

  • Type II – Fast twitch

    • Type II(a)

    • Type II(b)


Type i

Type I

  • Oxygen efficient

  • Necessary for extended muscle contraction (over time)

  • Longer time before fatige


Type ii

Type II

  • Anaerobic

  • Speed and strength

  • Fatigue quickly

  • Type II(a)

    • Combination of type I and type II

  • Type II(b)

    • Classic fast twitch

    • Rapid firing


Muscle tissue anatomy

Muscle Tissue Anatomy

  • Muscle Fiber

  • Endomysium

  • Fascicle

  • Perimysium

  • Epimysium

  • Tendon


Structure of muscle

Structure of Muscle


Activity

Activity!

  • Demonstration using food!

  • Each table will get 2-3 twizzlers.

  • Using saran wrap, post it notes and the twizzlers, create a diagram that shows the structure of muscle


Homework

Homework

  • Define terms from the reading:

    • Striated Muscle

    • Voluntary Muscle

    • Fascicle

    • Endomysium

    • Perimysium

    • Epimysium

      Possible quiz next class!


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