AP Biology

Neuron Worksheet. 

 

 

 

  1. Label the parts of the neuron below.

 

 

 

 

 

  1. Show the wave moving down a neuron.  Label polarization, depolarization, and repolarization.

 

 

 

 

 

 

  1. Describe the Sequence of events that occur in the neuron after a stimulus has been applied to the cell membrane.  Draw the course of the action potential and label.

 

 

 

 

 

 

  1. What is a refractory period?

 

 

 

 

 

  1. How do action potentials “ jump” down the axonic membrane?

 

 

 

 

  1. What is a synapse?  What is the role of neurotransmitters in the transmission of an impulse from the nerve to the muscle.

 

 

 

 

 

  1. Label the neuromuscular junction below.

 

 

 

 

 

8,    Describe the role of these neurotransmitters:  Acetylcholine( Ach), Norepinephrine, Dopamine, and Serotonin.