Hypophyseal portal system allows the hypothalamus to have direct communication with the anterior pituitary.
The hypophyseal portal system is a network of blood vessels that connects the anterior portion of the gland and hypothalamus at the base of the brain. Two capillary beds, one in the median eminence and the other in the anterior pituitary, make up the portal system. Its principal job is to swiftly transfer and exchange hormones between the anterior pituitary gland and the hypothalamic arcuate nucleus.
The cortisol, androgens, and aldosterone hormones interact with anterior pituitary gland cells via travelling through the hypophyseal portal system. Hormonal signaling through the hypophyseal portal system enables connection between these two structures.
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Answer:
d) seborrhea, a disease characterized by red, itchy lesions on the scalp.
Explanation:
Sebaceous gland are the glands which are usually present beneath the skin and with the hair follicles. They are also known as oil-producing glands as they released sebum.
If the sebaceous gland becomes too active and secrete extra sebum than it can cause a condition called Seborrhoea. In Seborrhoea microbe like Malassezia fungi species colonizes the area where sebum is produced and initiates local inflammatory response which causes scaly patches, itchy lesions, and red skin. So the correct answer is d.
In the chemical process of photosynthesis water is a chemical change
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