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Growth, Development, and Reproduction of Organisms: Human Body Systems
Muscles
Description
Muscles
Muscles are tissues composed of fibers that contract to generate force and movement. They are essential for a wide range of bodily functions, including locomotion, posture maintenance, and internal processes such as circulation and digestion. Muscles operate in conjunction with the skele...
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Transcript
Your body moves, stretches, and even pumps blood, all because of muscles. These tissues make up the muscular system, which includes all the muscles working together to keep you moving.
Each muscle is comprised of long cells called muscle fibers, which are packed with tiny units containing protein strands called actin and myosin.
When...
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