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Is adrenaline and noradrenaline the same?
No adrenaline and noradrenaline are NOT the same.
Is it true that once the effects of a stimulant wear off the driver could quickly fall asleep?
That is true. Most stimulants work by binding to excitatory neurotransmitter receptors (such as the case with amphetamines), inducing the release of excitatory neurotransmitters (such as dopamine and norepinephrine, in the case of amphetamines), preventing the breakdown of excitatory neurotransmitters (as in the case of Ritalin, cocaine, etc.), or blocking inhibitory receptors (as in the case of caffeine). When this happens, the brain adjusts by reducing its sensitivity to its own excitatory neurotransmitters...especially in the case of adrenaline (epinephrine), noradrenaline (norepinephrine), and dopamine. So, once the stimulant wears off, the body is not only fatigued again, but is actually MORE sleepy than before...making it very easy to fall asleep.
The sympathetic nervous system releases the neurotransmitter?
Norepinephrine (otherwise known as Noradrenaline). Acetylcholine IS NOT the right answer.
Do all excitatory neurotransmitters have the same effect on organs?
no
Is serotonin excitatory or inhibtory?
It's mainly inhibitory
Is adrenaline and noradrenaline the same?
No adrenaline and noradrenaline are NOT the same.
What are the excitatory neurotranmitters?
Glutamic acid (glutamate) is probably the most abundant excitatory transmitter. Others can be excitatory, such as acetylcholine, and some peptides. Aspartate is also excitatory. Finally, serotonin is often found to be exctitatory.
Is it true that once the effects of a stimulant wear off the driver could quickly fall asleep?
That is true. Most stimulants work by binding to excitatory neurotransmitter receptors (such as the case with amphetamines), inducing the release of excitatory neurotransmitters (such as dopamine and norepinephrine, in the case of amphetamines), preventing the breakdown of excitatory neurotransmitters (as in the case of Ritalin, cocaine, etc.), or blocking inhibitory receptors (as in the case of caffeine). When this happens, the brain adjusts by reducing its sensitivity to its own excitatory neurotransmitters...especially in the case of adrenaline (epinephrine), noradrenaline (norepinephrine), and dopamine. So, once the stimulant wears off, the body is not only fatigued again, but is actually MORE sleepy than before...making it very easy to fall asleep.
How can adrenergic drugs stimulate the adrenergic nerves?
This is done through several mechanisms: - Stimulating noradrenaline to be released - Mimicking noradrenaline's action on the receptors -Preventing noradrenaline to be broken down and reuptaken
The sympathetic nervous system releases the neurotransmitter?
Norepinephrine (otherwise known as Noradrenaline). Acetylcholine IS NOT the right answer.
What is excitatory messages?
There are two kinds of neurotransmitters - INHIBITORY and EXCITATORY. Excitatory neurotransmitters are not necessarily exciting - they are what stimulate the brain. Those that calm the brain and help create balance are called inhibitory. Inhibitory neurotransmitters balance mood and are easily depleted when the excitatory neurotransmitters are overactive.
What factor decreases the excitatory level of the spinal cord?
Fatigue decreases the excitatory level of the spinal cord
What neurotransmitter is always excitatory?
Glutamate
How does noradrenaline affect the heart rate?
It doesnt
What is SNRI?
SNRI is a class of antidepressants known better as Serotonin and Noradrenaline Reuptake Inhibitors. They increases (to some degree) the amount of serotonin and noradrenaline (norepinephrine) in the brain.
What is the Short term stress hormone?
adrenaline and noradrenaline
What does noradrenaline do?
It can cause vascular smooth muscle contraction
