Angiotensin I (Noun)
Meaning
A physiologically inactive form of angiotensin that is the precursor to angiotensin II.
Classification
Nouns denoting man-made objects.
Examples
- Angiotensin I is converted to angiotensin II by the enzyme angiotensin-converting enzyme in the lungs.
- The physiologically inactive angiotensin I is a precursor to the potent vasoconstrictor angiotensin II.
- Renin, an enzyme released by the kidneys, converts angiotensinogen to angiotensin I, starting the renin-angiotensin-aldosterone system.
- The formation of angiotensin I is the first step in the renin-angiotensin-aldosterone system that regulates blood pressure.
- Angiotensin I is not known to have significant physiological effects, but its conversion to angiotensin II has a profound impact on blood pressure regulation.