What hormone is released in response to low blood pressure to help maintain GFR?
Understand the Problem
The question is asking about a specific hormone that is released when blood pressure is low, and how it relates to the maintenance of the glomerular filtration rate (GFR). This involves concepts related to physiology and the body's regulatory mechanisms for maintaining blood pressure and kidney function.
Answer
Renin
The hormone released is renin.
Answer for screen readers
The hormone released is renin.
More Information
Renin is released by the juxtaglomerular cells of the kidney in response to low blood pressure. It starts a chain reaction that ultimately increases blood volume and blood pressure, helping to maintain glomerular filtration rate (GFR).
Tips
A common mistake is confusing renin with other hormones involved in blood pressure regulation like aldosterone or ADH. Renin, however, is specifically initiated due to low blood pressure.
Sources
- Renin-angiotensin-aldosterone system (RAAS) - Cleveland Clinic - my.clevelandclinic.org
- Physiology, Renal Blood Flow and Filtration - StatPearls - ncbi.nlm.nih.gov
- Renin: Production, Release, Triggers, Levels & Testing - Cleveland Clinic - my.clevelandclinic.org
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