Question

Using the options below, fill in the blanks. (11 marks).

Options:

Absolute refractory
Synaptic cleft
Action potential
Presynaptic Neuron
Post Synaptic
Resting potential
Terminal buttons
All-or-none
Reuptake
Axon
Neurotransmitters

Neurons send messages by creating a brief wave of electrical charge; this charge is called an Action Potential. The action potential conforms to the all – or – none principle. Once the action potential has fired it travels along the axon. Each axon ends in numerous Terminal Buttons. Each terminal button stores Resting potential. When the electrochemical wave arrives at the terminal button, the neurotransmitter is released onto the synaptic cleft, the tiny gap between neurons. The neuron that sends this signal is called the Presynaptic neuron, while the receiving neuron is called the postsynaptic. The neuron responsible for the action potential has to wait before it can send another electrochemical wave; this period is called the ___________ _____________ period. After the neurotransmitters have activated the receptor sites, they drift and are reabsorbed by the presynaptic neuron through ____________.

Answer 1

Answer:

1. axon

2. all-or-none

Explanation:

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