Types of muscle

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Types of muscle
2015-10-22 10:34:12
Test Two
Show Answers:

  1. Explain skeletal muscle.
    highly organized with connective tissue wrappings. 

    One reason is to allow the muscles to work independently of each other. Each muscle is isolated from adjacent muscles
  2. What are the parts of skeletal muscle
    • epimysium
    • perimysium
    • endomysium
  3. Epimysium
    • the CT wrapping that goes around the entire muscle
    • This is what isolates one muscle from the other. It is less obvious in lower forms, but much more obvious in higher forms
  4. Perimysium
    within a muscle, you have the fibers organized into bundles or fascicles. And, each bundle is enclosed and separated by connective tissue, which is the perimysium. It organizes the individual muscles into bundles or fascicles
  5. Endomysium
    very delicate connective tissue wrapping around each fiber (skeletal muscle fiber)
  6. tendons
    join muscle to bone
  7. ligaments
    join bone to bone
  8. aponeuroses
    flat sheets of CT that are attached to muscle

    Purpose: distribute tension on that muscle
  9. Fascia
    loose CT that binds muscle to muscle and skin to muscle
  10. Insertion
    the muscle attachment point; freely movable portion
  11. Origin
    also a muscle attachment point but a relatively fixed attachment
  12. Types of muscle action
    • prime movers
    • antagonists
    • synergists
  13. Prime movers
    the muscles that must contract to achieve a particular movement
  14. antagonists
    a group of opposing muscles that must relax to achieve the above movement; typically, the antagonist does the antagonistic movement; therefore, it must rest when one is trying to move
  15. Synergists
    a group of muscles that usually supplement the prime movers; they are not responsible for the main movement, but they aid in it
  16. Whenever you have a movement, you have __
    a series of muscles that must contract to achieve a particular movement
  17. In terms of naming muscles, how are they named?
    they are named in a variety of ways based on either the number, the movement, the components, location, etc