Muscular System

By Ryan Durnell period 5

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the musculatory system is the biological system for humans that produces movement with everything from vertebres and is controlled by the nervous system. muscle is contractile tissue and divided by the mesodermal layer muscle is composed of cells sometimes called muscle fiber there are approximately 640 skeletal muscles contrary to popular belief the number of muscle fibers cannot be increased by exercise muscle cells are connected with perimysium into bundles called fascicles most of the bodys energy

consumption is used for the muscles muscles store energy for their own use in the form of glycogen witch represents about 1 % of their mass glycogen can be rapidly converted to glucose when neccesary

               more facts

  1. Muscular system is 40  % of your body weight
  2. It takes half as long to gain muscles than to lose them
  3. The smallest muscle is found in the ear
  4. It takes on step to use 200 muscles
  5. muscles can not push
  6. Humans are born with all the muscle fibers they need
  7. The tongue is the strongest muscle
  8. It takes 17 muscles to smile and 43 to frown.
  9. When you’re cold, your muscles contract involuntarily contract
  10. The only muscle that never tires is our heart                                                                                                                                               the purpose of ligaments and tendons in relation to muscles                                                tendons are tough bands of connective tissue found in the joints each muscle has tendons on each side tendons are designed to stretch just a little bit their job is to transmit force between the bones and muscles                                                                   ligaments are made of the same things as tendons ligaments connect to the connect muscles together and are designed to help stabilize the joints they also limit how far a joint can bend

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a regular old muscle cell under a microscope

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