NESTA Lesson 3.txt

  1. Which of the following is not considered a type of muscle tissue?

    C) course
  2. Cardiac is only found in the heart and no other part of the body.
    A) true
    B) false
    A) true
  3. Which Of the following best describes a muscle tendon.

    A) attaches muscle to bone
  4. What is fascia?
    A sheet of fibrous connective tissue which separates and contains muscles within compartments.
  5. What is Epimysium?
    A dense layer of collagen fibers that surrounds a skeletal muscle and is continues with the tendons of the muscle and with the Perimysium (outer)
  6. What is Perimysium?
    A sheath of connective tissue that groups muscle fibers into bundles or fascicles. (central)
  7. What is Endomysium?
    A delicate network of connective tissue fibers that surrounds individual muscle cells. (inner)
  8. What is action potential?
    An electrical signal sent by the neuron telling the muscle to contract
  9. The sacromere is comprised of
    Actin (thin filaments) and myosin (thick filaments) that will slide over each other and contribute to the contraction of the muscle.
  10. A muscle that acts directly to bring about a desired movement through concentric muscle action is considered which of the following?

    B) agonist
  11. Define agonist.
    Prime movers; primary responsible for generating a specific movement.
  12. Define antagonist.
    Muscle that acts in opposition to the specific movement generated by the agonist. It's responsible for returning a limb to its initial position.
  13. Define stabilizer.
    The muscles of the body that acts to stabilize one joint so a desired movement can be performed in another joint.
  14. Define neutralizer.
    A muscle responsible for eliminating or canceling out an undesired movement.
  15. What is concentric?
    Shortening a muscle fiber against a load. Ex: upward phase of a dumbbell curl
  16. What is eccentric?
    Lengthening of a muscle fiber against a load. Ex: downward phase of a dumbbell curl.
  17. What is isometric?
    Muscles neither shortens nor lengthens against a load. Stabilizes the load. Ex: holding the elbow still at 90 deg in a dumbbell bicep curl.
  18. What is isotonic?
    Exercise where a concentric and/or eccentric action is generated to move a load through a range of motion where the force of the muscle does not change.
  19. What is isokinetic?
    Exercise on a specialized piece of equipment where the muscle action speed is constant.
  20. A synergist is a muscle that opposes the concentric muscle action.

    A) true
    B) false
    B) false
  21. Characteristics of Type I fibers are:
    Red in color; slow twitch; excel during aerobic activities
  22. Characteristics of type IIA muscle fibers are:
    Pink in color; moderately fast twitch; excel in activities lasting 30 sec to 2 minutes.
  23. Characteristics of type IIB muscle fibers are:
    White in color; fast twitch; good for anaerobic training.
  24. What is post exercise muscle soreness (PEMS)?
    Normal soreness; lasts 24-48 hours
  25. What is delayed on-set muscle soreness (doms)?
    Soreness extends beyond 48 hours. Not very good!
  26. Muscle soreness felt 24-48 hours after a workout is considered DOMS, whereas soreness felt beyond 48 hours is considered PEMS.

    A) true
    B) false
    B) false
  27. Which of the following is the lengthening of muscle fiber against a load?

    D) eccentric
  28. Define absolute strength.
    Maximum amount of force an individual can produce in one rep.
  29. Define relative strength.
    The max force that muscles can generate in relation to ones body weight. A gymnast
  30. Define strength endurance.
    The ability to sustain muscular contractions for a long period of time.

    Cycling or rowing
  31. What is power?
    It measures how quickly work is performed.

    Work=force x distance
  32. Which of the following measures how quickly work is performed?

    A) power
  33. Which of the following is considered to be the maximal amount of force an individual can produce in one rep?

    B) absolute strength
  34. The human skeleton is comprised of how many bones?

    A) 206
  35. Which of the following is not a function of the skeletal system?

    C) cushion
  36. A joint is best described as:
    The articulation between two bones.
  37. What are the diarthrodial joint type? What are their movement?
    • Saddle - saddle shaped surfaces allowing 2 degs of freedom
    • Condyloid - biaxial, one plane of movement that dominates two planes of motion
    • Hinge - one degree of freedom
    • Plane - flat surface that allows translation between two bones.
    • Pivot - one degree of freedom
    • Multiaxial - "ball and socket" 3 degs of freedom; freely movable
  38. Which of the following places on a long bone is the site where growth of the bone occurs and is present when we are children but fuses together once the growth process is over?

    A) epiphyseal plate
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NESTA Lesson 3.txt
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