11/7/2011 CHAPTER 18 ENDOCRINE SYSTEM Identify the endocrine glands and their hormones. Gain an understanding of the functions of these hormones in the body. Analyze medical terms related to the endocrine glands and their hormones. Identify abnormal conditions resulting from excessive and deficient secretions of the endocrine glands. Describe laboratory tests and clinical procedures related to endocrinology‚ and recognize relevant abbreviations. Apply your new knowledge
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Endocrine Maintains homeostasis. Ex. Growth rate‚ body temp‚ hunger feelings. Hormone Chemical messenger‚ that secretes into blood by an endocrine gland. Gland Secretes chemical substances used by the body Exocrine gland Secretes chemical substances into a duct Endocrine gland Ductless glands that secrete hormones Target cell Cell on which the hormone exerts an effect Affects of hormones Activation or inactivation of enzymes‚ stimulates mitosis‚ plasma membrane permeability change‚ synthesis
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The Endocrine System FOCUS: The endocrine system is one of the major regulatory systems in the body‚ along with the nervous system. However‚ the endocrine system responds more slowly‚ and has a longer-lasting‚ more general effect on the body than the nervous system. Endocrine tissues internally produce hormones which are released into the blood‚ where they are carried to target tissue and produce a response. Some hormones bind to receptors on the surface of the cell membrane‚ producing permeability
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The endocrine system is a control system of ductless glands that secrete chemical "instant messengers" called hormones that circulate within the body via the bloodstream to affect distant cells within specific organs. Endocrine glands secrete their products immediately into the blood or interstitial fluid‚ without storage of the chemical. Hormones act as "messengers‚" and are carried by the bloodstream to different cells in the body‚ which interpret these messages and act on them. Typical endocrine
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The endocrine system is very dynamic and has ties to most‚ if not all of the other major systems of the body. It is responsible for production of hormones and the regulation of them as well. These hormones act as chemical messengers within the body. Through several differing mechanisms‚ they are able to trigger very specific responses in target cells or organs. This is what enables the endocrine system to guide growth‚ development‚ reproduction‚ and behavior‚ among many others as well.
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PARATHYROID GLANDS Parathyroid glands are small glands of the endocrine system which are located in the neck behind the thyroid. There are 4 parathyroid glands in the human body. Parathyroid glands control the calcium in our bodies – how much calcium is in our bones‚ and how much calcium is in our blood. Parathyroid glands secrete or make a hormone‚ called parathyroid hormone or PTH. The parathyroid glands measure the amount of calcium in the blood every minute of every day and if the calcium
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Endocrine system or endocrine disruptor is not something we commonly hear or discuss about in our society. However‚ they both play a big role in humans. Many people have no insight of endocrine system or endocrine disruptor. The endocrine system is glands secreting different types of hormones that go directly into bloodstream to transfer information and instruction to one set of cells to another certain cells. Hormones are the body’s chemical messenger which regulates growth and development‚ body’s
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Lab 1 – Exercise 4: Endocrine System ACTIVITY 1: Metabolism and Thyroid Hormone Part 1: Chart 1: Effects of Hormones on Metabolic Rate Normal Rat Thyroidectomized Rat Hypophysectomized Rat Baseline Weight Ml O2 used in 1 minute Ml O2 used per hour Metabolic rate Palpation results 250 grams 7.1 ml 426ml 1704 ml O2/kg/hr NO MASS 245 grams 6.3 ml 378 ml 1542.86 ml O2/kg/hr
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MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. The study of the structure and shape of the body and body parts is called: Anatomy Know the difference between what is Physiology compared to Anatomy. Think Form and Function. Anatomy:the science of the structure of living organisms Physiology: The biological study of the functions of living organisms and their parts. Which of the following is the correct sequence‚ going from simplest
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Pituitary: The Master Gland 1. pituitary gland (hypophysis): produces 8 major hormones a. two lobes 1. anterior lobe (adenohypophysis): glandular tissue 2. posterior lobe (neurohypophysis): nervous tissue and is a direct extension of the hypothalamus b. connected to hypothalamus via the infundibulum 2. pituitary-hypothalamus relationships a. vascular connection between the anterior lobe and the hypothalamus b. the hypo. makes releasing/inhibitory hormones (RH/IH) that enter
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