Final answer:
The renin-angiotensin-aldosterone system is involved in the long-term regulation of blood pressure. Renin converts angiotensinogen into angiotensin I, which is then converted into angiotensin II. Drugs that inhibit ACE can control blood pressure.
Step-by-step explanation:
The renin-angiotensin-aldosterone system plays a crucial role in the long-term regulation of blood pressure. Renin, an enzyme produced by the kidneys, converts angiotensinogen into angiotensin I, which is then converted into angiotensin II. Angiotensin II acts to raise blood pressure by constricting blood vessels and triggering the release of aldosterone from the adrenal cortex, which stimulates the kidneys to reabsorb more sodium. Drugs that inhibit the enzyme ACE can be used to control blood pressure.