It leaves the collecting duct into the pelvis of the kidney, which leads to the ureter and the bladder where it is stored. Urine composition and the rate of urine formation are largely regulated by hormones vasopressin , aldosterone , and angiotensin , and the enzyme rennin . Diabetes insipidus is caused due to a lack of this hormone. It is characterized by thirst, and the production of large amounts of dilute urine. Angiotensis and Aldosterone are hormones that regulate the amount of sodium that is resorbed from the filtrate in the nephrons.
Aldosterone is produced by the adrenal gland.
Its action is directed by the bloods salt content. The kidney secretes an enzyme rennin, which changes a plasma protein angiotensinogen into angiotensin, which helps to increase the production of aldosterone and the blood pressure of the kidney. Draw and label a nephron. Give the functions of each part of the nephron. Explain how select invertebrates manage their nitrogenous waste.