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.
<em><u>Expansionary Monetary Policy is pursued by Federal Reserve.</u></em>
<u>Explanation:</u>
Expansionary Monetary is a macroeconomic policy which takes an action on economic growth of the country. Expansionary policy can be either monetary policy or fiscal policy or combination of both. Its increases the money supply, boosts aggregate demand and lowers the interest rates.
It deters the contractionary phase of the business cycle. It’s even included that policy’s purchases of government securities and reduction in the ration of reserves, the other point is discount rate decreases.
The Treaty organized by the victorious Allied Powers after the First World War, placing harsh sanctions on Germany and its Allies. - The German, Russian and Habsburg Empires had disappeared. - The Communist Revolution had taken place, striking fear all across Europe.
Social stratification<span>is is the hierarchical arrangement of large social groups based on the control over basic resources.</span>
A process is a sequence of activities that is intended to create a certain result, such as a physical good, a service, or information.
<h3>What is a process?</h3>
A process is a preparatory stage that precedes result. A process involves one or many steps integrated together to provide a result.
Process differs based on the results, some may take a longer time than the other.
Therefore, A process is a sequence of activities that is intended to create a certain result, such as a physical good, a service, or information.
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