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The Endocrine System

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Term
Definition
Gland   a cell, tissue or organ that manufactures a substance and secretes it to be used elsewhere in the body  
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Exocrine Glands   (exo=out, crine=secrete) those glands with tubes which carry their secretions from the gland to another organ or to the exterior of the body. example: tears, saliva, sweat, etc.  
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Endocrine glands   (endo=within) ductless glands which produce and secrete hormones directly into the bloodstream.  
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Hormones   "chemical messengers" a chemical substance secreted into the bloodstream by the endocrine glands which has a specific effect on the body functions.  
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Steriods   complex substances which are the basic of many hormones  
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Chemical Messengers   Hormones; act on other cells throughout the body  
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Pituitary Gland   embedded in the sella turcica of the sphenoid bone; secretes the most hormones in the body; "master gland" 1/2 inch in size, looks like a walnut (oval shape)  
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Pineal gland   cone shaped behind the midbrain and 3rd ventricle  
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Thymus gland   in the mediastinum, above the heart  
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Thyroid gland   throat, around the trachea; connected by a band called the isthmus  
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Parathyroid gland   embedded in the posterior aspect of thyroid glands  
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Pancreas   posterior to stomach, epigastric region  
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Adrenal glands   situated on top of each kidney  
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Ovaries   bilateral inguinal region  
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Testes   scrotal sac  
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Medulla   the inner portion of the adrenal glands activated by the sympathetic division of the ANS  
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Cortex   Covering; The outer portion of the adrenal glands  
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"fight or flight"   initial sympathetic nervous system response  
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Epinephrine   the main hormone in the initial stress response  
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Cortisol   the second hormone to help our body survive stress; also known as an anti-inflammatory  
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Cachexia   general ill-health and malnutrition  
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Exophthalmos   abnormal protrusion of the eyeballs  
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Gynecomastia   breast development in the make  
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Hirsutism   abnormal hairiness in females  
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Malaise   general sense of being ill  
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Polydipsia   excessive thirst  
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Diabetes Type 2   Diet and exercise is the first line of treatment  
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Diabetes Type 1   Insulin is the first line of treatment  
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Diabetes   Diagnosis is determined by a using a Glucose Tolerance Test (GTT)  
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Hypoglycemia   Blood sugar less than 70  
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Cushings disease   is a hypersecretion of Glucocorticoids (Cortisol) found in the adrenal cortex  
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Grave's disease   is a hypersecretion of the Thyroid gland  
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Addison's disease   is a hyposecretion of Glucocorticoids (Cortisol) found in the adrenal cortex  
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Gigantism   is a hypersecretion of the Growth hormone(GH) before puberty found in the Anterior Pituitary  
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Diabetes insipidus   is a hyposecretion of the Postierior Pituitary gland  
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Myxedema   is a hyposecretion of the Thyroid  
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Acromegaly   is a hypersecretion of the Growth hormone(GH) after puberty found in the Anterior Pituitary gland  
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Diabetes mellitus   is a hyposecretion which can be type 1 or type found in the Pancreas  
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Goiter   Enlargement of the thyroid caused by hyper and hypothyroidism, inflammation, and lack of iodine in the diet  
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