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Muscles of the body. Topics we will be covering What are muscles? What are the types of muscles? What do muscles do?

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Presentation on theme: "Muscles of the body. Topics we will be covering What are muscles? What are the types of muscles? What do muscles do?"— Presentation transcript:

1 Muscles of the body

2 Topics we will be covering What are muscles? What are the types of muscles? What do muscles do?

3 What are Muscles? A body tissue that contracts or shortens making body parts move

4 What Are Muscles There are about 650 muscles in the human body Muscle mass makes up about half of a persons body weight Made up of muscle, tendons, nerves and blood vessels

5 What are the types of muscles? Smooth Muscle or Visceral Muscle – Involuntary muscles found within the walls of organs – Found in the esophagus, Stomach, Blood vessels, bronchi, bladder and many more areas – Weakest of all muscle – Stretches the most out of the 3 types of muscle

6 What are the types of muscles? Skeletal muscles – Voluntary muscles anchored by tendons to the bones – Used in skeletal movement and maintaining posture – 35%-45% of all body mass is skeletal muscle – Most attach to bones across joints to pull the bones together

7 What are the types of muscles? Skeletal Muscle – Usually comes in pairs to move a joint two different directions

8 What are the types of muscles? Cardiac Muscle – Involuntary muscle that is built like skeletal muscle – Only found in the heart – Does not get fatigued

9 What do muscles do? Cardiac and skeletal muscle are striated or appear in bands which is a sign that they are very strong unlike visceral muscle Tendons are tough bands of connective tissue that attach muscles to bones.

10 What do muscles do? Origin and insertion – The origin is the stationary bone the insertion is the movable bone


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