Muscular System

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Author:
tanyalequang
ID:
305205
Filename:
Muscular System
Updated:
2015-07-14 22:02:44
Tags:
houska biology anatomy physiology
Folders:
anatomy and physiology
Description:
questions based on lecture study guide
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  1. Name the connective tissue layers from superficial to deep
    EPENDO

    • epimysium
    • perimysium
    • endomysium
  2. the connective tissue that binds the muscles to each other is called
    deep fascia
  3. What connective tissue divides a skeletal muscle into fascicles
    perimysium
  4. what connective tissue surrounds and interconnects individual muscle fibers?
    endomysium
  5. what connective tissue surrounds a whole muscle?
    epimysium
  6. What are the function of the skeletal muscle?
    • guarding body entrances and exits
    • maintaining body position
    • maintaining body temperature
    • protecting internal organs
  7. The diaphragm is made up of what type of muscle tissue
    skeletal muscle tissue
  8. the muscle cell is surrounded by a membrane called
    sarcolemma
  9. which organelle produces most of the energy necessary for skeletal muscle cells to contract and relax
    mitochondrion
  10. which organelles take up most of the volume of a skeletal muscle cell?
    mitochondria
  11. the chemical released by motor neurons that causes contraction of the sarcomere
    calcium
  12. small motor units are comprised of how many muscle fibers
    three to twelve
  13. a single motor neuron and all muscle fibers innervated is referred to as
    a motor unit
  14. what is referred to as the tension produced by a skeletal muscle to maintain body position without muscle contraction
    muscle tone
  15. Exercise increases the number and size of this structure resulting in muscle hypertrophy
    myofibrils
  16. damage to the nerves innervating a muscle or muscles may result in two things
    • muscle atrophy
    • a muscle twitch
  17. a bundle of fascicles and its associated connective tissue is referred to as
    whole muscle
  18. name the components of the whole muscle in descending order of size (4)
    fascicle, muscle fiber, myofibril, myofilament
  19. approximately how many skeletal muscles are there in the human body
    several hundred
  20. the bundle of muscle fibers and its associated connective tissue is referred to as
    fascicle
  21. what are the contractile units of muscle
    sarcomeres
  22. myofilaments include two filaments (thick and thin)
    • thick - myosin
    • thin - actin
  23. what is the neurotransmitter of the neuromuscular junction of the skeletal muscle
    acetylcholine

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