Download Learning Objectives - Valhalla High School

The muscular System
• What do skeletal
muscles do?
• How do muscles
work?
Functions of Muscle Tissue
• Produce movement
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• Maintain posture and body position
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• Support soft tissue
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• Movement of substance around the body
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• Maintain body temperature
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Types of muscles tissue
Skeletal Muscle
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Muscle Action
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• When muscle contracts it shortens and pulls two
jointed bones together.
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 An example would be the contraction of the
biceps and a relaxation of the triceps. This
produces a bend at the elbow, an action called
flexion
 The contraction of the triceps and relaxation of
the biceps produces the effect of straightening
the arm.
• Muscle contractions require energy
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• Muscle contractions are under stimulation from the
CNS
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Anterior View
Posterior View
The muscular system
• BBC MUSCLE GAME