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.
Answer:
What Is the Law of Supply and Demand?
The law of supply and demand is a theory that explains the interaction between the sellers of a resource and the buyers for that resource. The theory defines the relationship between the price of a given good or product and the willingness of people to either buy or sell it. Generally, as price increases people are willing to supply more and demand less and vice versa when the price falls.
Explanation:
The law of demand says that at higher prices, buyers will demand less of an economic good.
The law of supply says that at higher prices, sellers will supply more of an economic good.
These two laws interact to determine the actual market prices and volume of goods that are traded on a market.
Several independent factors can affect the shape of market supply and demand, influencing both the prices and quantities that we observe in markets.
Economic growth and new wealth changed business in Europe because more people had wealth, they started buying more manufactured goods <span>
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Milner repeatedly saying a number to himself showed that h.m. could remember it for up to fifteen minutes. This perfectly exemplifies Temporal memory
Short-term memory is the capacity of the mind to temporarily store a little amount of information and keep it accessible. It is frequently called active memory or primary memory.
What makes for a good example of short-term memory?
Short-term memory is the ability to retain a little amount of information for a brief period of time. An example of this is when someone is given a phone number and is forced to memorize it because there is no way to write it down.
How long does short-term memory last?
15 to 30 sec.
I, or When we talk about "short-term memory," any cognitive psychologist refers to memory that lasts for 15 to 30 seconds. not a couple of days, hours, or minutes. merely 15–30 seconds.
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