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A fall in glomerular filtration rate (GFR) activates
Options
(a) adrenal cortex to release aldosterone
(b) adrenal medulla to release adrenaline
(c) juxta – glomerular cells to release renin
(d) posterior pituitary to release vasopressin
Correct Answer:
juxta – glomerular cells to release renin
Explanation:
The amount of filtrate fomed by the kidneys per minute is called glomerular filtration rate (GFR). GFR in a healthy individual is approximately 125 ml/minute, i.e., 180 litres per day. A fal in GFR can activate the JG cells to release renin which can stimulate the glomerular blood flow and thereby the GFR back to normal. Renin converts angiotensinogen in blood to angiotensin I and further angiotensin II. Angiotensin II being powerful vasoconstrictor increases the glomerular blood pressure and thereby GFR.
Related Questions: - Identify the anabolic process from the following
- For sound good reflex actions we require intact
- Loss of forests, urbanization, increasing pollution are all due to
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Topics: Human Physiology Systems
(35)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Identify the anabolic process from the following
- For sound good reflex actions we require intact
- Loss of forests, urbanization, increasing pollution are all due to
- The term ‘glycocalyx’ is used for
- Which one of the following mammalian cells is not capable of metabolishing
Topics: Human Physiology Systems (35)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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