Book: Chapter 11 (muscles)

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edeleon
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287929
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Book: Chapter 11 (muscles)
Updated:
2014-11-12 01:15:49
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chapter 11 bio1210
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Exam 3
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Text book notes
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  1. This fascicle pattern can be triangular or fan shaped. It can be found in the pectoralis major
    • Fascicles arranged concentric rings
  2. What is the general name for a muscle with a circular pattern?
    Sphincter
  3. This fascicle pattern can be triangular or fan shaped. It can be found in the pectoralis major
    • convergent pattern
  4. This muscle pattern can either be fusiform or trap like.
    • Parallel arangement
  5. In this pattern, the fascles are short and attach obliquely to a tendon. It makes the muscle look like a feather. There are 3 different types.
    • Pennate pattern:
    • 1. multipennate
    • 2. bipennate
    • 3. unipennate
  6. This pennate looks like many feathers. The deltoid muscle is an example.
    • Multipennate
  7. In this pennate pattern, the fascicles insert into the tendon from both sides; the rectus femoris is an example.
    • Bipennate
  8. In this pennate pattern, the fascicle inserts only to one side of the tendon. An example is the extensor digitorum longus.
    • Unipennate
  9. T or F: muscles with parallel fascicles can have a greater range of motion and are also powerful
    False: muscles with greater range of motion are weaker
  10. What do the letters stand for?
    • a) load
    • b) fulcrum
    • c) effort
  11. In this type of lever, the load is moved close to the fulcrum and the effort is moved far from the fulcrum: a small effort can move a large load
    Power lever
  12. What is a mechanical advantage?
    When a small effort can move a large load
  13. This type of lever is when the effort is closer to the fulcrum than the load
    speed lever
  14. What is mechanical disadvantage
    large effort that moves a load at a greater speed and distance
  15. Class?
    1st class lever
  16. In this class of lever, it raises your head off your chest. The posterior neck provides the effort: the joint is the fulcrum and the load is the facial skeleton
    1st class lever
  17. What class of lever is this?
    2nd class lever
  18. What class of lever is this?
    3rd class lever
  19. In this class of lever, it operates at a mechanical disadvantage. The effort is farther away from the fulcrum than the load.
    2nd class.
  20. What class of lever is this?
    3rd class
  21. Which germ layer do muscles originate from and from what 2 parts of the germ layer?
    Mesoderm: myotomes + splanchnic
  22. The muscles of the visceral organs develop from this mesoderm
    splanchnic
  23. This is another name for the pharyngeal arch muscles
    branchiomeric muscles
  24. This group of muscles are found in the throat with some in the head and neck
    Pharyngeal arch muscles
  25. This group of muscles include muscles of facial expressions, chewing and swallowing
    pharyngeal arch muscles
  26. These are skeletal muscles of the thorax, abdomen, pelvis, plus many of the neck and a few in the head
    axial muscles
  27. what are the 2 main functions of the axial muscles?
    moving the trunk and posture
  28. This group of muscles develop from myotome and some from somitomeres
    axial muscles
  29. This is the muscle that has the major responsibility for producing a specific movement (2 names)
    prime mover or agonist
  30. This is a muscle that oppose or reverse a particular movement
    antagonist

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