Muscle Question

[dentalknight]

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Kaplan test #13

Which of the following does not describe a simple twitch muscle response?

a) It involves the response of a single muscle fiber at the threshold stimulus
b) It consists of a latent, contraction and relaxation period
c) the contractions combine to become stronger and more prolonged
d) it has an absolute refractory period
e) calcium ions are released

i was thinking between b and c

 

[dentalknight]

is it that hard of a question or are people just ignoring the muscles? any feedback would help...

 

[PooyaH]

C it is!

 

[doc3232]

C it is!

I have an idea of an answer, but not a confident one.
Please explain 🙂

 

[PooyaH]

I have an idea of an answer, but not a confident one.
Please explain 🙂

Well you just gotta know the characteristics of simple twitch in muscles!
All of them are characteristics of simple twitch except C which would cause Tetanus which is stronger than simple twitch!

 

[whoaaitzkyle]

Kaplan test #13

Which of the following does not describe a simple twitch muscle response?

a) It involves the response of a single muscle fiber at the threshold stimulus
b) It consists of a latent, contraction and relaxation period
c) the contractions combine to become stronger and more prolonged
d) it has an absolute refractory period
e) calcium ions are released

i was thinking between b and c

The answer is C because it explains tetanus which is a prolonged contraction of the muscles. Take a look at the definition of tetanus and it will probably make more sense. In this case, you're looking for a simple twitch muscle response, which in regards is depicted in the other choice selections.

 

[HoangDDS]

The answer is C because it explains tetanus which is a prolonged contraction of the muscles. Take a look at the definition of tetanus and it will probably make more sense. In this case, you're looking for a simple twitch muscle response, which in regards is depicted in the other choice selections.

A simple twitch is just the activation of a muscle fiber. Tetnus is the increased frequency/stimulation of one muscle fiber leading to maintained contraction.