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The Hypothalamus and Pituitary Gland
The Hypothalamus and Pituitary Gland

... of rats, oxytocin has been shown to selectively act on inhibitory interneurons reducing background noise and improving signal transmission within specic brain circuits. These studies indicate that oxytocin helps the brain focus in on socially relevant sensory input. It also is becoming clear that o ...
AP Biology Notes Outline Chapter 45: Hormones and the Endocrine
AP Biology Notes Outline Chapter 45: Hormones and the Endocrine

... The adrenal glands are adjacent to the kidneys and are actually made up of two glands: the adrenal medulla and the adrenal cortex. The adrenal medulla secretes epinephrine and norepinephrine, hormones which are members of a class of compounds called catecholamines. These hormones are secreted in res ...
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Hormones - OpenStax CNX
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Chapter 11 - Tribiana.com

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Notes - Austin Community College

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File - Dr. Jerry Cronin
File - Dr. Jerry Cronin

... the bloodstream are called endocrine glands – They are one of two major types of glands in the body, the other being exocrine glands (which secrete their products into ducts ) ...
Chemistry Problem Solving Drill
Chemistry Problem Solving Drill

... be a mechanism in place that can terminate the hormone‟s action. Hormones originate in one tissue, travel through the bloodstream, and affect other tissues, including the brain. When they act on the brain, they influence our interest in sex, food, and aggression. But how are hormones defined? In ord ...
Physioactivity 1: Endocrine glands
Physioactivity 1: Endocrine glands

... 12. Amino acids, the building blocks of proteins are usually small molecules with a terminal amine group. Peptides are short chains of amino acids (2 - 20) and proteins are long chains of amino acids (> 20) a. Which of the remaining hormones is a protein? b. Which one is a peptide? c. Which is a mod ...
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Xenoestrogen

Xenoestrogens are a type of xenohormone that imitates estrogen. They can be either synthetic or natural chemical compounds. Synthetic xenoestrogens are widely used industrial compounds, such as PCBs, BPA and phthalates, which have estrogenic effects on a living organism even though they differ chemically from the estrogenic substances produced internally by the endocrine system of any organism. Natural xenoestrogens include phytoestrogens which are plant-derived xenoestrogens. Because the primary route of exposure to these compounds is by consumption of phytoestrogenic plants, they are sometimes called ""dietary estrogens"". Mycoestrogens, estrogenic substances from fungi, are another type of xenoestrogen that are also considered mycotoxins.Xenoestrogens are clinically significant because they can mimic the effects of endogenous estrogen and thus have been implicated in precocious puberty and other disorders of the reproductive system.Xenoestrogens include pharmacological estrogens (estrogenic action is an intended effect, as in the drug ethinyl estradiol used in contraceptive pill), but other chemicals may also have estrogenic effects. Xenoestrogens have been introduced into the environment by industrial, agricultural and chemical companies and consumers only in the last 70 years or so, but archiestrogens have been a ubiquitous part of the environment even before the existence of the human race given that some plants (like the cereals and the legumes) are using estrogenic substances possibly as part of their natural defence against herbivore animals by controlling their male fertility.The potential ecological and human health impact of xenoestrogens is of growing concern. The word xenoestrogen is derived from the Greek words ξένο (xeno, meaning foreign), οἶστρος (estrus, meaning sexual desire) and γόνο (gene, meaning ""to generate"") and literally means ""foreign estrogen"". Xenoestrogens are also called ""environmental hormones"" or ""EDC"" (Endocrine Disrupting Compounds). Most scientists that study xenoestrogens, including The Endocrine Society, regard them as serious environmental hazards that have hormone disruptive effects on both wildlife and humans.
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