Put the events for action potential generation in a neuron in the correct order (From 1-9) <Presynaptic axon terminal releases neurotransmitterRepolarization of the axolemma occurs as K+ leaves the cellNeurotransmitter binds to receptors on the postsynaptic cellK+ channels close slowly, causing hyperpolarization at the axolemmalon channels in the postsynaptic cell (dendrites or cell body) open allowingNa and K diffuse along their concentration gradientSodium potassium pump continues to pump 3 Na* out of the cell and 2 K+into the cell in order to restore ionic concentrations, allowing theaxolemma to return to the resting membrane potential (polarized)The axon hillock reaches threshold, causing voltage-gated sodiumchannels to open and creates a complete reversal of charge (actionpotential)Depolarization of the membrane occurs and moves towards the axonhillockAs the action potential travels down the axon, Na+ channels close and K+channels open

Answered: Put the events for action potential…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

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Question

Put the events for action potential generation in a neuron in the correct order (From 1-9)

<
Presynaptic axon terminal releases neurotransmitter
Repolarization of the axolemma occurs as K+ leaves the cell
Neurotransmitter binds to receptors on the postsynaptic cell
K+ channels close slowly, causing hyperpolarization at the axolemma
lon channels in the postsynaptic cell (dendrites or cell body) open allowing
Na and K diffuse along their concentration gradient
Sodium potassium pump continues to pump 3 Na* out of the cell and 2 K+
into the cell in order to restore ionic concentrations, allowing the
axolemma to return to the resting membrane potential (polarized)
The axon hillock reaches threshold, causing voltage-gated sodium
channels to open and creates a complete reversal of charge (action
potential)
Depolarization of the membrane occurs and moves towards the axon
hillock
As the action potential travels down the axon, Na+ channels close and K+
channels open

Expert Solution

Step 1: Introduction

Action potential generation is a fundamental process in neurons, allowing them to transmit electrical signals essential for communication within the nervous system. These events involve changes in the neuron’s membrane potential, creating a rapid and coordinated electrical signal.