Endocrine System - Hypothalamus

Question 1

What Does The Hypothalamus Regulate + How

Answer 1

Hypothalamus regulates the pituatary gland through one of two ways:
1.) Nerve stimulation from the brain
2.) Release of hormones

Question 2

What does the Pituatary gland do in response to the Hypothalamus?

Answer 2

In response, the pituatary gland stimulates an endocrine gland to secrete a hormone.

Question 3

What happens if the Endocrine gland secretes a high level hormone?

Answer 3

High levels of the hormone can generate a negative feedback loop, which would affect the activity of the hypothalamus.

Question 4

What makes the Hypothalamus different?

Answer 4

Differs from other glands because it synthesizes releasing hormones (TROPHIC)

Question 5

What is a Trophic Hormone?

Answer 5

Travels from the hypothalamus to the pituatary gland, which then signals for another specific hormone to be released.

Question 6

Examples of Trophic Hormones

Answer 6

GnRH (Gonadotropin Releasing Hormone), stimulates pituitary to release hormones (LH & FSH) that target gonads.
GHRF (Growth Hormone Releasing Factor), stimulates pituitary to release (hGH, human growth hormone)
PRH (Prolactin Releasing Hormone), stiimulates pituitary to release prolactin

Question 7

What do the Hypothalamic neurons and nuclei produce?

Answer 7

Hypothalamic neurons produce regulatory hormones whereas the Hypothalamic nuclei produce ADH and Oxytocin.