Pharmacology Test 3 Review

Pharmacology Test 3 Review - NUR 1140 Nursing Pharmacology...

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NUR 1140 Nursing Pharmacology Test #3 Review This is a general review for the test. It is not all inclusive. There may be other items included on the test. 1. Regulation of calcium by the body; parathyroid, parathyroid hormone, kidneys, calcitonin 2. Hypothalamus and pituitary – know function of each Hypothalamus is coordinating center “master gland” of nervous system and endocrine system. It maintains homeostasis by analyzing input from periphery and CNS, and coordinating responses through ANS, endocrine and nervous system. It controls body temperature, thirst, hunger, water retention, BP, respiration, reproduction and emotional reactions. Pituitary controls hormone functions such as our thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females, lactations, hair growth. It produces hormones, endorphins and enkephalins and stores two hypothalamic hormones. 3. Characteristics of hormones: - produced in small amounts - secreted to bloodstream - travel to and react with specific receptors within the body - increase or decrease normal metabolic processes in the cells - immediately broken down 4. How do hormones act? a. Some hormones react with specific receptor sites on a cell membrane to stimulate the nucleotide cAMP, they react quickly, i.e. insulin. b. By entering the cell and reacting with receptor sites inside the cell to chamge mRNA, which enters cell nucleus, affects cell’s DNA and in long term affects the function of the cell, i.e. estrogen. 5. Where are hormones produced and what are the hormones? i.e. parathyroid – parathormone, thyroid – calcitonin Hormones are chemical messengers working within the endocrine system to communicate within the body. Pituitary Ovaries – estrogen, progesterone Testes - testosterone Adrenal – cortisol, aldosterone Thyroid – thyroid hormone, calcitonin Parathyroid - Parathormone Pancreas – insulin, glucagon, somatostatin Pineal gland - melatonin Intestines- secretin, cholecystekinin Kidney –erythropietin, rennin Stomach - gastrin 1
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6. 3 lobes of the pituitary gland and hormones produced and/or stored in each lobe Anterior – TSH , PRL, GH, ACTH, LH, FSH and MSH (melanocyte-stimulating h.) Intermediate lobe - endorphins and enkephalins Posterior – oxytocin and vasopressin (ADH) ADH –stimulates kidneys to conserve water - increases BP by vasoconstriction 7. What is the negative feedback system? Hypothalamic-pituitary axis works by supply and demand. Increasing levels of hormone lead to decreases level of releasing and stimulating hormones, leading to decreased hormones level, which stimulates the release of releasing and stimulating hormones; allows tight control of the endocrine system. 8.
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Pharmacology Test 3 Review - NUR 1140 Nursing Pharmacology...

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