To produce a contraction similar to the one in graph (b), the ...

[lidoalex]

To produce a contraction similar to the one in graph (b), the muscle
 A) must be stimulated to the point of fatigue.
  B) must be stimulated again before it has relaxed from the previous stimulation.
  C) is excited by a stimulus of increasing intensity.
  D) must go through a rapid series of isolated twitches.
  E) generates more and more thin and thick filaments.

Question 2

If a second stimulus arrives before the relaxation phase has ended, a second, more powerful contraction occurs. This addition of one twitch to another is called
 A) incomplete tetanus.
  B) complete tetanus.
  C) treppe.
  D) wave summation.
  E) recruitment.

[tennis14576]

Answer to Question 1

B

Answer to Question 2

D

[lidoalex]

TYSM

[alvinum]

Excellent