Th Autonomic Nervous System explained: Receptors, Pathways & Drug Targets Made Easy

Описание: Struggling to connect autonomic anatomy with receptor pharmacology? This video is designed specifically for undergraduate pharmacology and medical students who want a clear, integrated understanding of the autonomic nervous system—without the vague, oversimplified explanations common in most online videos.
In this lecture, we break down the ANS in a way that directly supports drug learning and clinical reasoning. You’ll learn not just what the sympathetic and parasympathetic systems do, but why, based on neurotransmitters, receptor subtypes, and the underlying anatomy. We also explain the adrenal medulla as a special sympathetic structure and show how catecholamine synthesis relates to the physiological actions of adrenaline and noradrenaline.
What this video covers:
✔️ How autonomic nerves leave the spinal cord and synapse
✔️ Preganglionic vs postganglionic neurotransmitters (ACh, NA, adrenaline)
✔️ Clear rules to predict receptor-mediated responses
✔️ What makes chromaffin cells different from postganglionic neurones
✔️ Catecholamine synthesis and the adrenal “fight-or-flight” amplifier
✔️ Why adrenaline and noradrenaline have different physiological effects
✔️ Clinical drug examples
Why this video is different:
Most ANS videos focus on isolated facts.
This one connects anatomy → transmitters → receptors → physiology → drugs, so you actually understand the system the way pharmacologists think about it.
Perfect for:
– Pharmacology undergraduates
– Medical students
– Biomedical sciences students
– Anyone preparing for exams involving receptor pharmacology or physiology
If you found the video helpful, make sure to like, subscribe, and explore the rest of the pharmacology series.

Timestamps:
0:00 – Introduction to the autonomic nervous system
0:44 – The autonomic nervous system in action
1:49 – What is the autonomic nervous system?
2:58 – The ANS works all the time
4:05 – Two divisions, one goal: homeostasis
4:58 – The wiring: a two-neurone chain
6:59 – Sympathetic system: the fast response network
11:56 – Parasympathetic system: the conservation and maintenance network
16:48 – Postganglionic neurotransmitters and receptors
19:33 – Autonomic receptors and organ responses
22:26 – Rules of thumb for autonomic receptors
24:46 – The adrenal gland: a special sympathetic organ
27:00 – Catecholamine synthesis
29:10 – Adrenaline versus noradrenaline: receptor selectivity and physiological actions
31:37 – Autonomic nervous system: key takeaways