1) This hormone is secreted directly from the hypothalamus in the brain to the p
ID: 215170 • Letter: 1
Question
1) This hormone is secreted directly from the hypothalamus in the brain to the pituitary gland:
a) testosterone, b) estradiol, c) progesterone, d) follicle stimulating hormone, e) gonadotropin- releasing hormone
2) How do antidiuretic hormone and the renin-angiotensin-aldosterone system work together in maintaining osmoregulatory homeostasis?
a) ADH monitors osmolarity of the blood and RAAS regulates blood volume
b) ADH monitors appropriate osmolarity by reabsorption of water, and RAAS maintains osmolarity by stimulating Na+ reabsorption.
c) ADH an RAAS work antagonistically; ADH stimulates water reabsorption during dehydration and RAAS removal of water when it is in excess in body fluids.
d) both stimulate the adrenal gland to secrete aldosterone that increases both blood volume and pressure
3) Of the following, which is a characteristic that is unique to amphibians?
a) urine in the form of ammonia, b) nephrons with no DCT, c) water is reabsorbed from the urinary bladder, d) waste excreted as a paste, e) their skin is too thin to get a tattoo
Explanation / Answer
Q1). e). gonadotropin-releasing hormone
Hypothalamus secretes the hormones called “releasing hormones,” which act on the pituitary gland to release particular stimulating hormones. These stimulating hormones act on endocrine glands and stimulate the release of endocrine hormones. For example, the gonadotropin-releasing hormone (GRH) released by the hypothalamus acts on the anterior pituitary and trigger the release of FSH and LH.
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