322_elbow

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Author:
itzlinds
ID:
252705
Filename:
322_elbow
Updated:
2013-12-17 23:49:12
Tags:
elbow
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Description:
throwin 'bows
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  1. Which muscle produces only flexion of the elbow?  

    Biceps brachii
    Brachialis
    Brachioradialis
    Pronator teres
    brachialis
  2. During the down phase of an elbow curl, which muscle is working and how? 

    Triceps brachii; concentrically
    Triceps brachii; eccentrically
    Biceps brachii; concentrically
    Biceps brachii; eccentrically
    biceps brachii; eccentrically
  3. In which of the following actions will the biceps brachii be most active in producing flexion torque? 

    A pull-up with the forearm pronated
    A push-up
    A pull-up with the forearm supinated
    A bench press
    a pull - up with the forearm supinated
  4. Which of the following exercises targets the brachioradialis? 

    Supinated curls
    Hammer (neutral) curls
    Pronated curls
    pronated curls
  5. During the down phase of a push-up, which muscle is working and how?

    Triceps brachii; concentrically
    Triceps brachii; eccentrically
    Biceps brachii; concentrically
    Biceps brachii; eccentrically
    triceps brachii; eccentrically
  6. Throwing a curve ball requires forearm supination.  Which muscle would stop the forearm motion after releasing the ball?

    Supinator
    Biceps brachii
    Pronator quadratus
    pronator quadratus
  7. Which of the following positions would maximally stretch biceps brachii?

    Elbow extension, forearm supination, shoulder extension
    Elbow extension, forearm pronation, shoulder extension
    Elbow extension, forearm neutral, shoulder flexion
    Elbow extension, forearm pronation, shoulder flexion
    elbow extension, forearm pronation, shoulder extension
  8. During the pull phase of a seated row, which of the following is true regarding muscle activity at the elbow?

    Triceps brachii; concentrically
    Triceps brachii; eccentrically
     Biceps brachii; concentrically
    Biceps brachii; eccentrically
    biceps brachii; concentrically
  9. Which of the following positions would maximally stretch triceps brachii?

    Elbow extension, shoulder extension
    Elbow flexion, shoulder extension
    Elbow extension, shoulder flexion
    Elbow flexion, shoulder flexion
    elbow flexion, shoulder flexion
  10. Supination and pronation occur at the elbow.

    True
    False
    false
  11. list the 5 muscles of the anterior elbow:
    • biceps brachii
    • brachilalis
    • brachioradialis
    • pronator teres
    • pronator quadratus
  12. list the 3 posterior muscles of the elbow:
    • triceps brachii
    • anconeus
    • supinator
  13. list the 4 flexors at the elbow:
    • biceps brachii
    • brachilais
    • brachioradialis
    • pronators teres
  14. what are the 2 fxns of the biceps brachii:
    • flexion
    • supination of forearm

    • the only 3 joint muscle
    • most powerful flexion when RU is supinated
  15. what is the best way to target the biceps brachii for strengthening:
    supinated gripped curls
  16. what is the best way to target the brachialis for strengthening:
    pronated gripped curls
  17. what is the fxn of the brachialis:
    • flexion of elbow
    • regardless of forearm position
  18. what is the best way to target the brachioradialis for strengthening:
    hammer curls (neurtral)
  19. what are the 3 fxns of the brachioradialis:
    • flexion: when motion resisted
    • pronation to neutral
    • supination to neutral

    • active in quick movements
    • flexes best in neutral
  20. what is the fxn of the pronator teres
    • pronation of the forearm
    • weak flexor

    assists in flexion against resistance
  21. list the 3 pronators of the elbow:
    • barchiloradialis
    • pronator teres
    • pronator quadratus
  22. what is the fxn of the proantor quadratus:
    pronation of the forearm

    EMG activity greater than pronator teres
  23. list the 3 extensors at the elbow
    • triceps brachii
    • anconeus
  24. what is the fxn of the triceps brachii:
    power extensor

    • medial is principle extensor; usually with lateral
    • all 3 heads work against resistance
  25. what is the fxn of the anconeus
    • works with triceps
    • extension

    moderately active during pronation & supination
  26. list the 3 supinators of the elbow:
    • supinator
    • biceps brachii
    • brachioradialis
  27. what is the fxn of the supinator:
    supination of the forearm

    • primary supinator under all conditions
    • important muscle in curve ball throwing

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