Question

question 7 (1 point)
themaster gland of the endocrine system is:
a) the thalamus gland
b) the pituitary gland
c) the hypothalamus
d) the adrenal gland
question 8 (1 point)
the hypothalamus controls the anterior pituitary with which of the following?
a) releasing factors
b) thalamus messenger
c) third messengers
d) neural stimulation
e) acetylcholine

Explanation:

• Question 7: The pituitary gland is called the'master gland' because it controls the functions of many other endocrine glands. It secretes hormones that regulate growth, metabolism, reproduction, and other vital processes. The thalamus is not a gland (it is a part of the brain involved in sensory and motor signal relay). The hypothalamus is a brain structure that regulates the pituitary gland but is not itself called the'master gland'. The adrenal gland is involved in stress - related hormone production (like cortisol) but is not the'master gland'.
• Question 8: The hypothalamus controls the anterior pituitary gland through releasing factors (also known as releasing hormones). These releasing factors are secreted by hypothalamic neurons into the hypophyseal portal system (a network of blood vessels) and then act on the anterior pituitary cells to stimulate or inhibit the release of anterior pituitary hormones. Thalamus messenger is not a relevant term in this context. Third messengers are not involved in the hypothalamus - anterior pituitary control. Neural stimulation is more relevant for the posterior pituitary (where the hypothalamus has a direct neural connection), not the anterior pituitary. Acetylcholine is a neurotransmitter, not the main factor in hypothalamus - anterior pituitary communication.

Answer:

• Question 7: B. the pituitary gland
• Question 8: A. releasing factors