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7 February, 22:43

When (blank) is released from a (blank) neuron and binds with receptors on the motor endplate, the muscle begins to (blank)

So I'm supposed to fill in the blanks with this one, and I not sure what the blanks are?

A second question I'm stuck on is a multiple choice one,

Calcium Ions move by which mechanism into the cell and bind with tropomyosin and troponin?

osmosis

active transport

telepathy

diffusion

+2
Answers (1)
  1. 7 February, 22:53
    0
    I think it is: acetylcholine (neurotransmitter) - motor neuron - contract

    second question: diffusion because of opening of ca2 + channels
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