Question

Which of the following hormones prevent water loss in urine?

• A. Oxytocin
• B. Vasopressin
• C. Somatocrinin
• D. Somatostatins

Answer 1

The correct option is B Vasopressin

Vasopressin controls water reabsorption. The process involves adding or removing water pores in the apical membrane under the direction of the posterior pituitary hormone vasopressin. When vasopressin acts on target cells, the collecting duct epithelium becomes permeable to water, allowing water to move out of the lumen. The graded effect of vasopressin allows the body to match urine concentration closely to the body’s needs: the more vasopressin is present; the more water is reabsorbed.

Oxytocin is a hormone and a neurotransmitter that is involved in childbirth and breast-feeding. It is also associated with empathy, trust, sexual activity, and relationship-building.

Growth hormone releasing hormone $\text{(GHRH)}$, also known as somatocrinin. It is a $\text{44-}$amino acid peptide hormone produced in the arcuate nucleus of the hypothalamus.

Somatostatin, also known as growth hormone-inhibiting hormone $\text{(GHIH)}$. It is a peptide hormone that regulates the endocrine system and affects neurotransmission and cell proliferation via interaction with $\text{G}$ protein-coupled.

So, the correct answer is 'vasopressin'.