7 Answered Questions for the topic neurophysiology


Are centrioles really absent in human neurons?

A booklet (issued by my school) claims, Centrioles, formerly believed to be absent in neurons, have been described in neurons and may be associated with the production and maintenance of... more
Neurophysiology Biology Human Biology Death


Will neurons die if they are inactive for a long time?

We know that when muscles are not used they atrophy. Does something similar also happen in neurons if they do not receive any stimulus?


Are there any plants with nervous systems?

I know that plants can send impulses through their "body." However, I was curious if there were any types of plants that had nervous systems? Or something similar? Thank you!


Do spinal cord reflexes (such as the knee-jerk reflex) continue to function under general anaesthesia?

The knee-jerk reflex is an example of a stretch reflex. Stretch reflexes are monosynaptic reflexes happening in the spinal cord without involvement of the brain.Does it mean that this reflex will... more


Why do antidepressants have a delayed onset of action?

Why do antidepressants take so long to reach efficacy? I've read of theories about it perhaps being due to the strength of negative feedback via serotonergic and adrenergic autoreceptors during the... more


ANS Critical Thinking Question

Propranolol is a drug known as an Adrenergic Antagonist. Specifically, when it binds to β receptors (a subcategory of adrenergic receptors), it antagonizes any effects that result when... more
Neurophysiology Pharmacology


How do drugs enter synapses?

Many psychopharmaceutical drugs change synapse chemistry or directly agonize neuroreceptors in the brain. For example, cabergoline is a D2 agonist.How do these compounds enter the physical... more

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