Lab Study Stack
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| The nervous system has been compared to an animal delivery system and the endocrine to the pony express...why this comparison? | The nervous systme employs elctrochemical impules and "rapid control" whereas the endocrine system employs "chemical messengers" or hormones into blood for transport which is a slower system
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| Define Hormone | THe body's hormones, steroids or amino-based molecules arouse the body's tissues & cells by stimulating changes in their metabolic activity
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| Chemically, hormones belong chiefly to two molecular groups, the | steroids and the amino-based molecules
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| What do all hormones have in common? | They are all blood borne.
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| Define "target organ" | Organs that respond to a particular hormone in a specific way
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| If hormones travel in the bloodstream, why don't all tissue respond to all hormones? | Because they all have different protein receptors and only certain cells will react to the prescence of a particular hormone.
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| located in the troat; bilobed gland connected by an isthmus | thyroid gland
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| found close to the kidney | Adrenal gland
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| a mixed gland, located close to the stomach and small intestine | Pancreas
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| paired glands suspended in the scrotum | testes
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| ride "horseback" on the thyroid gland | Parathyroid glands
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| found in the pelvic cavity of the female, concerned with ova and female hormone production | ovaries
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| found in the upper thorax overlying the heart; large during youth | thymus
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| found in the roof of the third ventricle | Pineal Body
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| Responsible for the programming of T lymphocytes (hormone & site of production) | Thymus/thymosin
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| Released in response to stressors (2 hormones and site of production) | Thyroid/calcitoninParathyroid/PTH
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| Drive development of secondary sexual characteristics (2 hormones & site of production) | Ovaries/estrogensTestes/testosterone
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| Regulate the function of another endocrine gland (4 hormones and sites of production) | Anterior pituitary is the site for all four hormones; FSH, LH, ACTH, TSH
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| Mimics the sympathetic nervous system; hormone and site | Epinephrine/adrenal medulla
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| Regulate blood glucose levels; produced by the same "mixed" gland (2 hormones/2 sites) | Glucagon & insulin both produced in the pancreas
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| Directly responsible for regulations of the menstrual cycle (2 hormones/2 sites) | estrogens and progesterone, both produced in the ovaries
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| maintenance of salt and water balance in extracellular fluid (2 hormones/2 sites) | ADH produced in the hypothalamusAldosterone produced in the adrenal cortex
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| Directly involved in milk production and ejection (2 hormones/2 sites) | Oxytocin produced in the hypothalamusProlactin produced in the anterior pituitary
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| ADH is stimulated by the/a | nervous system
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| Aldosterone is stimulated by the/a | humoral factors
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| Estrogens are stimulated by the/a | another hormone
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| insulin is stimulated by the/a | humoral factors
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| norepinephrine is stimulated by the/a | nervous system
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| parathyroid hormone is stimulated by the/a | humoral factors
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| T4/T3 is stimulated by the/a | another hormone
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| testosterone is stimulated by the/a | another hormone
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| TSH,FSH is stimulated by the/a | another hormone
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| The inadequate amt of hormone _______that produces the condition PTH | tetany
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| The inadequate amt of hormone _______ which causes excessive diuresis without high blood glucose levels caused the condition; | ADH
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| The inadequate amt of hormone ________ causes the loss of glucose in the urine | insulin
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| The _________ Hormone in inadequate amts causes the condition of an abnormally small stature, normal proportions | growth hormone (GH)
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| The hormones __________ and _________ in low amts cause a Low BMR, mental & physical sluggishness | thyroine (T4) and triiodothyronine (T3)
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| The hormone _______when produced in excessive amts causes large hands and feet in the adult and large facial bones | Growth Hormone (GH)
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| The hormone __________ when produced in excessive amts that results in nervousness, rregular pulse rate and sweating | T4/T3 (Thyroid Hormone)
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| The hormone PTH when produced in excessive amounts results in the following | demineralization of bones, spontaneous fractures
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| Hormone produced by parafollicular cells of the thyroid | calcitonin
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| The hormone produced by follicular epithelial cells of the thyroid | T4/T3
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| The hormone produced by beta cells of the pancreatic islets (islets of langerhans) | insulin
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| The hormone produced by alpha cells of the pancreatic islets | glucagon
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| The hormone produced by basophil cells of the anterior pituitary | TSH,ACTH, FSH, LH
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| The hormone produced by zona fasciculata cells | glucocorticoids
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| The hormone produced by zona glomerulosa cells | mineralocorticoids
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| The hormone produced by cheif cells | PTH
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| The hormone produced by acidophil cells of the anterior pituitary | GH, prolactin
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