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.
What prompted the early twentieth century coup in Brazil was the urban middle class sought to overturn the coffee elite-controlled government. There was a collapse on the coffee demand. Brazilians were discontent with the government that led to a revolution.
The answer to your question would be letter A.
The Mississippi-missouri river system is the largest river system in America.
Sociologists examine social phenomena in order to learn more about social phenomena affect people's lives.
Social phenomena are taken into consideration as inclusive of all conduct which impacts or is inspired through organism sufficiently alive to reply to each other. This includes impacts from beyond generations.
Social phenomenon. Any discovered motion, occasion, or state of affairs this is created through society, in preference to such that takes place naturally. person elements. organic and private elements that influence our conduct.
Social phenomena are taken into consideration as inclusive of all conduct which impacts or is stimulated by means of organisms sufficiently alive to respond to each other. This includes impacts from past generations.
Learn more about sociologists here:-brainly.com/question/606515
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Answer:
below.
this will help you
Explanation:
A map that shows an area in great detail, such as a street map of a neighborhood, is called a large-scale map because objects on the map are relatively large. A map of a larger area, such as a continent or the world, is called a small-scale map because objects on the map are relatively small.
