• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Organization of the Brain - Mr. Van Frachen's Web Page
Organization of the Brain - Mr. Van Frachen's Web Page

... • Even though hormones are very similar to neurotransmitters, there are some basic differences • Neurotransmitters messages are transmitted short distances with lightning speed • Hormones are transmitted over a greater distance at a much slower rate. • Unlike the target specific neurotransmitter th ...
Related Anatomy
Related Anatomy

... Unit 9 Endocrine ...
Hormones & Endocrine System
Hormones & Endocrine System

...  Hormones – chemical signals that cause a response in target ...
Endocrine Glands and their Hormones These are the hormones
Endocrine Glands and their Hormones These are the hormones

... ...
Fish model species in human and environmental toxicology Jessica
Fish model species in human and environmental toxicology Jessica

... Fish models are commonly used in human and eco-toxicity testing to investigate the impact of chemicals on whole organisms. Many important biological functions are conserved between fish species and humans. Therefore fish have a wide utility domain, spanning from basic developmental biology, neuro ...
Chapter 3 Section 3
Chapter 3 Section 3

... • Pituitary Gland – responsible for the secretion of many different hormones that affect various aspects of behavior such as the growth hormone. • Thyroid Gland – produces thyroxin which affects the body’s metabolism – it’s rate of converting food to energy. • Adrenal Gland – the outer layer of the ...
Technical Comments on the Brochure and updates on EDC
Technical Comments on the Brochure and updates on EDC

... • A stronger example is the study by Kidd et al PNAS 2007 on the collapse of a fish population after exposure to a synthetic estrogen • Also synthetic estrogens in wastewaters and feminization of fish • Another well known example is the feminization of fish downstream of pulp and paper mill effluent ...
Chapter 7 PowerPoint
Chapter 7 PowerPoint

... Secretion of thyroxin is regulated by TSH, which is secreted by the pituitary gland Lack of iodine in the diet will lead to lack of thyroxin secretion. This produces enlargement of the thyroid gland and is called Goiter Goiter- is the result of iodine deficiency in the diet ...
Brain development: chemical overreaction
Brain development: chemical overreaction

... In particular it's the brain of a foetus in the womb that is sensitive to toxic substances that may be completely harmless to an adult organism. The brains of babies and young children as well can be much more greatly harmed by chemicals than is a mature brain. Unborn children come into contact with ...
Understanding Delayed Puberty in Boys
Understanding Delayed Puberty in Boys

... highest levels first thing in the morning. Additional blood testing done at the same time might include FSH, LH, cortisol, ACTH, thyroid hormone studies, growth factors and a prolactin level. We also do genetic evaluations if they are needed. Depending on the results of the laboratory testing furthe ...
The Endocrine System
The Endocrine System

... cleaning products, cancer treatments and pesticides are known endocrine disruptors and have disastrous effects on fish populations. Largemouth Bass commonly affected by endocrine disruptors Endocrine disruptors that mimic estrogen hormones have a severe impact on fish fertility and reproduction. The ...
Endocrine System Puberty PowerPoint
Endocrine System Puberty PowerPoint

... ovaries are the female reproductive glands that stores the female reproductive cell ….. the egg males also have estrogen … increase levels in the females causes female changes progesterone is another female hormone … increase levels during pregnancy ...
AMA 176 powerpoint
AMA 176 powerpoint

... Endocrine System ...
1.5 Individual human development during youth: Physical
1.5 Individual human development during youth: Physical

... development of female sex characteristics, breast development and the regulation of the menstrual cycle. ...
The Endocrine system
The Endocrine system

... The Endocrine system Glands and hormones ...
The Endocrine system
The Endocrine system

... The Endocrine system Glands and hormones ...
Glossary Physician’s Desk Reference
Glossary Physician’s Desk Reference

... Point source pollution: A discharge of water contaminant to a stream or other body of water via an identifiable pipe, vent, or culvert. Prescription drug: A drug that can be obtained only by means of a physician's prescription. Resource Conservation and Recovery Act: A federal law controlling the ma ...
Hormones and puberty
Hormones and puberty

... The pituitary gland is often called the ‘master gland’ because it controls the actions of other endocrine glands by stimulating them to release their hormones. The pituitary gland is in turn regulated by an area of the brain called the hypothalamus. The hypothalamus detects messages from the nervous ...
Lesson 1: Reproductive Systems
Lesson 1: Reproductive Systems

... public health nurses (for kits containing models of fetal development) Elder/religious leader ...
Endocrine system – hormones secreted by endocrine glands
Endocrine system – hormones secreted by endocrine glands

... Biology ...
Chapter 17 highlights2
Chapter 17 highlights2

... Transmission ...
Endocrine System
Endocrine System

... reproductive glands that produce egg cells & estrogen. ...
Chemicals and Disease
Chemicals and Disease

... viruses that cause or promote cancerous cells. –Environmental and lifestyle factors account for up to 80% of all cancers ...
Endocrine System - Westhampton Beach Elementary School
Endocrine System - Westhampton Beach Elementary School

... Endocrine System • Negative Feedback System – hormones work together in opposition; as one increases the other decreases to create a balance • Example: In the diagram ACTH and ...
No Slide Title
No Slide Title

... 1. Produce 2 groups of sex hormones 2. Both contribute to the development & function of female reproductive organs and sex characteristics a. Estrogens promote: * breast development * fat distribution in hips, legs, & breasts * maturation of reproductive organs b. Progesterone causes uterine lining ...
< 1 ... 47 48 49 50 51 >

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.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report