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Endocrine Disruptors: What are they, and why should we care? httpwww.usgs.govthemesFS-189-97
The Endocrine System Hormones secreted into bloodstream from glands Conveys information throughout body Regulates metabolism, growth, reproduction, immune function, etc.
Examples of Human Hormones Testosterone Estrogen Growth hormone Insulin Thyroxine Adrenaline
Hormone Receptors Each hormone molecule fits a specific receptor protein Different cells, organs, have different receptors Hormones can target specific cells, organs via these receptors
Hormones target specific cells via their receptors
Different cells have different receptors
Endocrine disruptors: Molecules that interfere with endocrine system Naturally occurring or man-made Enter organisms via air, water, diet, skin Can cause problems with an organisms development, reproduction, immune system, etc.
Effects of Endocrine Disruptors Intersex characteristics: both male and female characteristics are present in the same fish; feminization of males Abnormal breeding cycles Impaired immune systems
http://pubs.usgs.gov/fs/fs-043-01/ http://snhs-plin.barry.edu/endocrine_disruptors.htm Cellular growth/tumors Abnormal development
Sources of Endocrine Disruptors: Drugs/medicines Pesticides Plasticizers Consumer products (plastic bottles, metal cans, detergents, cosmetics, toys, food)
Examples of Endocrine Disruptors DDT PCBs (polychlorinated biphenyls) BPA (bisphenol A) Phthalates
Dealing with Endocrine Disruptors Prevent exposure (laws, policy-making) Remove contaminants ???
Endocrine Disruptors and Frogs Limb development http://www.epa.gov/ncer/science/endocrine/ pdf/wildlife/r827398_gardiner-030105- final.pdf
Endocrine System. The endocrine system is made up of glands that release hormones into the bloodstream to control body functions such as growth, reproduction,
EOH3101 PRINCIPLES OF ENVIRONMENTAL HEALTH ENVIRONMENTAL HEALTH ISSUES: ENVIROMENTAL HORMONES.
Endocrine System. The Endocrine System consists of: Glands that secrete Hormones that secrete Hormones.
Endocrine System. The endocrine system is composed of glands that release hormones into the bloodstream to control body functions such as growth, reproduction,
Endocrine System. The Endocrine System consists of: that secrete GlandsHormones.
Aim: How does the Endocrine System work in our body?
Endocrine System Overview Glands: Major organs of the endocrine system Glands make hormones – Hormones: chemical signals Hormones move through bloodstream.
The Endocrine System The endocrine system consists of glands (specialized organs) that produce hormones. A hormone is a chemical messenger that is released.
Hormones influence a cell’s activities by entering the cell or binding to its membrane.
A Small Dose of EDCs – 06/01/09 An Introduction To The Health Effects of Endocrine Disrupting Chemicals (EDCs) A Small Dose of EDC.
The Endocrine and Reproductive System
The Endocrine System. What is the Endocrine System? Definition: a system of the body which consists of glands that release substances (hormones) into.
The Endocrine System By: Cristian Aguilar, Jorge Peinado, Esdras Perez.
The Endocrine System. Endocrine’s latin parts mean inside secretion DEFINITION: the endocrine system is a system of ductless glands that secrete hormones.
The Endocrine System. Endocrine Glands Endocrine glands release hormones Hormones: chemicals that circulate through the body to regulate the metabolic.
Chapter 14 Toxicology Objectives: Know what the endocrine system is. Know what hormones are. Know the four major types of chemical toxins. Know what endocrine.
Brain Pop!!. A system of glands that helps the body function. It contains a group of glands that release hormones into the body. 1. Gland: a group.
Endocrine System Overview Physically disconnected Controls growth, development, environmental responses Glands: Major organs of the endocrine system.
The Endocrine System. WHAT IS THE ENDOCRINE SYSTEM?
The Endocrine System. functions Controls body functions and helps maintain homeostasis by using hormones. hormone – chemical messenger made in one cell.
Endocrine System. Functions of the endocrine system Regulates the effects of hormones on the body functions. Controls growth, development metabolism and.
Regulation and Control. the water content of the body water leaves the body via the lungs when we breathe out and via the skin when we sweat, and excess.
The Endocrine System T. Zack Crawford. What is the Endocrine System? A collection of glands that produce hormones to regulate the body’s growth, metabolism,
Human Regulation Endocrine System. There are no specialized cells, glands or hormones that the five (5) representative organisms have. Animals, however,
The Endocrine System What is the Endocrine System? What do we know about it?
The Endocrine System. Function The endocrine system produces chemicals that control many of the body’s daily activities. The endocrine system also regulates.
Endocrine System A transmitter of chemical “messengers”
Section 3: Chemical Hazards What are toxic and hazardous chemicals? What are some possible impacts from chemical hazards? Are hormonally active agents.
Endocrine System The endocrine system is composed of glands and regulates the body by releasing hormones directly into the bloodstream to control body.
Endocrine System Made up of its glands and hormones The glands are called ductless The release hormones directly into the blood stream.
Cody Ford. Once classified as a Carcinogen, but removed due to lack of evidence.
Endocrine System Biology 12.
Biology 2. Nervous system regulates many body activities. Endocrine system regulates life functions.
The Endocrine System. Hormones For hundreds of years, humans have released countless numbers of synthetic compounds into the environment. Many pharmaceuticals,
Main Function: It releases hormones into the blood to signal other cells to behave in certain ways. It is a slow but widespread form of communication.
Endocrine System A control system for your body. Functions Uses chemicals (hormones) to: a. Regulate internal environment.
AP Biology Endocrine System Hormones Reproduction.
Endocrine System Review
The Endocrine system Glands and hormones. Endocrine system 1. Functions: Producing hormones to help maintain homeostasis 2.Parts of endocrine system:
Chemical Regulation Stimuli Glands Secrete Hormones Response Function of the Endocrine System….
Objectives describe the main function of the endocrine system explain the jobs done by different hormones identify the endocrine glands and hormones responsible.
Aim: What are the main parts and functions of the endocrine system? I. Endocrine System A. Endocrine (ductless) gland - is a group of cells that produces.
Endocrine System Hormones and the glands that send them.
The Endocrine System Objectives: Describe the endocrine system. Identify hormones and their function in the endocrine system. The Endocrine System controls.
Environmental Hazards and Human Health. Are Baby Bottles & Food Cans Safe To Use? 1.Some synthetic chemicals act as hormone mimics and disrupt the human.
KS4 Biology Hormones.
Regulation The Endocrine System Regulation: The Endocrine System.
The Endocrine System Lesson 6-3. Objectives Describe the endocrine system Identify hormones and their function in the endocrine system.
Skeletal and Muscular System Jeopardy Test Review Game.
Structures and functions of the endocrine system.
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