NEETZoologyChemical Coordination and Integration
Which of the following statements regarding the regulation of the pituitary gland is correct?
Options
- AThe neurohypophysis receives hormones like oxytocin and vasopressin from the hypothalamus through a portal cir
- BThe anterior pituitary is regulated by hypothalamic hormones that reach it through a portal circulatory system
- CThe pars distalis is under the direct neural regulation of the hypothalamus for the secretion of gonadotropins
- DThe pars intermedia synthesizes and secretes vasopressin under the regulation of the hypophyseal portal system
Correct answer
B. The anterior pituitary is regulated by hypothalamic hormones that reach it through a portal circulatory system
Step-by-step solution
The hypothalamus regulates the pituitary gland through two distinct anatomical pathways. Hormones synthesized by the hypothalamic neurons reach the anterior pituitary (pars distalis) through a portal circulatory system. These hormones regulate the functions of the anterior pituitary, including the release of hormones like prolactin, growth hormone, and gonadotropins. Thus, the second statement is correct. The posterior pituitary (neurohypophysis) is under the direct neural regulation of the hypothalamus. Hormones l