How is the amount of urine produced regulated from chapter life processes
Answers
Explanation:
Urine formation and regulation in Human
Urine is formed in human through a pair of bean-shaped filtering organ called the Kidney. Blood passes through it via the renal portal vein. It filters out the waste materials from the blood. Doing this also lead to filtering of useful materials like glucose, amino acids, ions. Useful materials are reabsorbed and taken back into the blood. All these processes happen in the liquid medium which is composed mainly of water. The kidney also absorbs and filter water as per the need. If the body fluid has excess water, it is secreted out. In the case of dehydration very less water is secreted to maintain the body fluid. All these regulations are controlled by hormones like Aldosterone, ADH, glucocorticoids, mineralocorticoids which in turn are controlled by blood pressure, amount of body fluid, blood osmotic pressure and minerals in body and blood.
Throughout the whole process all the minerals, nutrients, water and waste materials are absorbed and secreted multiple times. The resulting hypertonic solution is high in excretory waste, undesired minerals. The solution formed is called urine.
Question
How is the amount of urine produced regulated?
Answer:
The amount of urine produced is regulated by hormonal feedback mechanisms involving the hypothalamus, juxta glomerular apparatus and to a certain extent the heart. Antidiuretic hormone and angiotensin play important roles in this regulation.