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 the alarm stage.
According to Hans Seyle's <span>general adaptation syndrome (GAS) model, when faced with and responding to stressors, individuals and animals go through three stages: Alarm, Resistance and Exhaustion. During the Alarm stage, individuals have their sympathetic nervous system (or fight-or-flight response) activated. This means that they aroused with a burst of energy to either fight the threat or flee from it. In Nancy's example, when she encountered the rattlesnake, she experienced the alarm stage of the GAS model, where she was prepared to flee from the rattlesnake. </span>
Have an extended part of walking so móvil it y is higher, also they need to use resistant material on their ladders, supports etc. Like metal
The need to have a restricted area for people with no permission to be near
And they need special clothes
pls mark as brainlist
Explanation:
Poland
On September 1, 1939, Hitler invaded Poland from the west; two days later, France and Britain declared war on Germany, beginning World War II. On September 17, Soviet troops invaded Poland from the east.
Answer:
1. federalist
2. Anti-federalist
3. federalist
4. federalist
5. Anti-federalist
6. federalist
7. federalist
8. Anti-federalist
9. federalist
10. Anti-federalist
Explanation: sorry if it wrong i tried i'm in school so if it's wrong tho.
