Answer:
Explanation:
Action potential
It is the potential or power or electrical energy required to generate impulses and provides communication between the neurons is called action potential. Normally cell membrane consists of potential is called resting membrane potential() -70mV. The action potential is due to exchange of different ions across the membrane.
Phases of the action potential in a neuron are
i. Depolarization- it is caused by the influx of sodium and calcium ions through the opening of voltage-gated sodium and calcium channels. sodium ion influx is rapid than the calcium ions membrane potential -70mV to +30mV.
ii. Repolarization - It causes the efflux of potassium ions into the cell through the opening of potassium channels. the membrane returning to resting membrane potential.
iii. After- Hyper polarization - in this stage the potassium channels remain open and causes re polarization and comes to normal membrane potential.
The generation of impulses(depolarization) in neuron mainly depends on influx sodium and calcium ions without these ions, no action potential developed and neuron firing does not occur.
If the drugs inhibit these channels, no depolarization, no action potential, no neuronal firing or communication.
The channels involved in an action potential are voltage-gated sodium channels, potassium channels, and calcium channels.
The action potential is required for transmission of information one are to another area in the body.
The responses to different stimuli is due to action potential.
The correct answer is letter A
The Bill of Rights is nothing more than the set of the first ten amendments to the American Constitution ratified in 1791, a true decalogue of individual rights against public power", a meeting of the "main rights, franchises and guarantees that make Western Civilization unique. among all others. Today it is a model for all democratic constitutions in the world.
Answer:
In a country that is vast with a diverse population
Explanation:
A federal-state or a federation is a collection of different states that have a national and state governments with the central government governing affairs.
Therefore, the scenario that a federal-state would work BEST is In a country that is vast with a diverse
Answer:
duf-nuep-axk ........ .. .....
Answer:
The citizens of Boston viewed the Coercive Acts as unnecessary and cruel punishment that inflamed outrage against Britain even further. Great Britain hoped that the Coercive Acts would isolate radicals in Massachusetts and cause American colonists to concede the authority of Parliament over their elected assemblies.
Explanation:
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