Hypertension – Pathophysiology - Renin-angiotensin-aldosterone system (RAAS) Part 1 | Dr. Avinash

Renin-angiotensin-aldosterone system (RAAS) plays a vital role in controlling the arterial blood pressure. In this video, the attempt was made to precisely explain how the RAAS system gets activated and affects the various physiological functions. RAAS system is a part of humoral regulatory mechanism and such humoral abnormalities may be involved in the development of essential hypertension.

0:00 Introduction
0:17 Mechanisms Affecting Blood Pressure
2:23 Humoral Mechanism
2:38 Renin Angiotensin Aldosterone System
6:36 How Renin Secretion Occurs!
7:44 Renin release through polkissen cells
9:08 Renin release through macula densa
12:00 Juxta Glomerular Apparatus
12:57 Systemic Release of Renin
15:33 Release of Renin in Response to Electrolytes Imbalance
16:35 Where The Renin will go and bind?
20:08 Pause the Video & Take A Break!
20:17 Different Physiological Actions of Ag-II
23:28 Ag-II Action on Adrenal gland
27:53 Ag-II Actions in CNS, PNS, Heart, Kidney & Intestine.
34:31 Brief Summary
34:45 Queries?/Thanks For Watching!

Disclaimer:
"The information provided in this video is intended for informational and educational purposes only. It is not intended to provide assessment, diagnosis, treatment, or medical advice. This video does not constitute provision of healthcare services. It is important to consult with a physician or healthcare professional regarding any medical or mental health related diagnosis or treatment. No information in this video should ever be considered as a substitute for advice from a healthcare professional."


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