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colleen colleen
wrote...
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Posts: 17077
11 years ago
List three primary functions of muscles. Describe each function.
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11 years ago
1. Muscles are responsible for movement. The types of movement are locomotion, propulsion of substances through tubes as in circulation and digestion, and changes in the size of openings as in the contraction and relaxation of the iris of the eye. 2. Muscles help to maintain posture through a continual partial contraction of skeletal muscles. This process is known as tonicity. 3. Muscles help to produce heat through the chemical changes involved in muscular action.
Biology!
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