Introduction to the Muscular System
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Science
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7th Grade
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Hard
Chris Tindle
Used 8+ times
FREE Resource
6 Slides • 0 Questions
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Introduction to the Muscular System
Muscles, Muscles, they help us move!
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Types of Muscle Tissue
As you can see pictured to the right, there are 3 different types of muscle tissue, some of which are involuntary and some of which are voluntary.
Skeletal Muscles: Provide the force that moves the bones; these are the muscles that work together with your bones to allow for locomotion. A strong connective tissue called a tendon attaches the muscle to a bone.
Smooth Muscle: Found in the walls of most internal organs such as the airways, the stomach, and blood vessels.
Cardiac Muscles: Found only in the walls of the heart, it is a part of the circulatory and muscular system that is responsible for pumping blood throughout the body.
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How do Skeletal Muscles Work?
Each time you move, more than one muscle is involved; this is due to the muscles only being able to contract and not lengthen. This leaves the muscles to working in pairs. One muscle will contract while the other relaxes and vice versa, a great example is shown on the right.
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How is Muscle Movement even possible?
Your muscles have no way to move without being told to do so. The final component in muscular movement is the peripheral nervous system, which is responsible for directing the movements of the muscular system.
In fact, without the nervous system we would find ourselves much worse off considering
Introduction to the Muscular System
Muscles, Muscles, they help us move!
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