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The Muscular System Pgs 46-47. Intro Video 2 Functions of the muscular system.

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Presentation on theme: "The Muscular System Pgs 46-47. Intro Video 2 Functions of the muscular system."— Presentation transcript:

1 The Muscular System Pgs 46-47

2 Intro Video

3 2 Functions of the muscular system

4 1 st Function of the muscular system

5 Function of the muscular system Provides movement In conjunction with the skeletal system

6 2 nd Function of the muscular system

7 Helps organs carry out life functions

8 3 Types of Muscles

9 1 st Type of Muscle.

10 Skeletal Muscles

11 Properties of Skeletal Muscles Majority of your muscles

12 Striated Striped appearance

13 Connect to bones with tendons

14 They are voluntary

15 These muscles help you move.

16 React quick, but also tire quick

17 How muscles deal with getting tired The fibers inside alternate being used

18 Take a pencil Fold a paper clip so it is resting on the pencil Not supporting paper clip in any way and it must remain perpendicular to paper Try to make the paper clip stay still Or hold above paper and try to make stay still

19 It’s a good thing your heart is not made of Skeletal Muscle How long can you make your hand a heart Open fully and close every second

20 2 nd Type of Muscle Smooth Muscle

21 Smooth Muscles: found in the walls of internal organs and the blood vessels.

22 They are involuntary

23 They react slowly and and tire more slowly than skeletal muscle.

24 3 rd Type of Muscle Cardiac Muscles

25 Cardiac Muscles: Muscles that make up the heart. Striated

26 They are involuntary

27 Cardiac Muscles The muscle can contract repeatedly, it will not tire.

28 What a real heart beating looks like

29 http://www.youtube.com/watch? annotation_id=annotation_6114 36&feature=iv&src_vid=Pes9O5 z8efk&v=uR4t__B-Zwg

30 Why do your muscles feel “bigger”?

31 Figure it out based on animation http://www.edumedia- sciences.com/en/a85-biceps-and-triceps

32

33 Muscles Work in Pairs Muscles can only contract, they do not extend or get larger. Skeletal muscles work in pairs so when one contracts the other relaxes. Examples: Biceps/Triceps, Hamstring/Quadriceps

34 String can only pull not push String on both sides of a ruler demonstration

35 Smart Board Venn Diagram

36 Bpop

37 Muscle Practice sheet


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