STATE GOVERNMENT-FUNDED EDUCATIONAL INSTITUTION OF HIGHER PROFESSIONAL TRAINING UNDER THE MINISTRY OF HEALTH OF THE RUSSIAN FEDERATION “VOLGOGRAD STATE MEDICAL UNIVERSITY” DEPARTMENT OF NORMAL PHYSIOLOGY GUIDE BOOK PRACTICAL MANUAL IN NORMAL PHYSIOLOGY PHYSIOLOGY OF ENDOCRINE SYSTEM For 2nd year students of MD-programme Name: Group: Volgograd, 2012 УДК Physiology of endocrine system. Guide book. Practical manual in normal physiology. – Volgograd: VolgSMU, 2012. – 7 p. Compiled by: Klauchek S. V., Lifanova E. V., Khvastunova I. V., Kudrin R. A., Akhundova R. E., Doletsky A. N., Schmidt S. A. Approved by the Central Methodology Board of the Volgograd State Medical University. This manual summarizes the practical tasks of human physiology of excitable tissues. It caters for teachers and students in the English-speaking medium of higher medical educational institutions. © Volgograd State Medical University, 2012. 2 CONTENT Practical class 1. General physiology of endocrine system. Hormone regula- 4 tion of physiological functions: pituitary gland, thyroid gland, parathyroid gland Practical class 2. Hormone regulation of physiological functions: hormonal control of calcium metabolism, pancreas, adrenal cortex, adrenal medulla, ovaries, testis 3 5 Practical class 1. General physiology of endocrine system. Hormone regulation of physiological functions: pituitary gland, thyroid gland, parathyroid gland 1. 2. 3. 4. 5. 6. Questions for discussion What is the endocrine system? What are the functions of the endocrine system? Hypothalamus. Localization, structure and functions. Hormones. Hypo- and hyperfunction. Regulation of pituitary hormones secretion. Hypophysis (pituitary gland). Localization, structure and functions. Hormones. Hypo- and hyperfunction. Regulation of pituitary hormones secretion. Thyroid gland. Localization, structure and functions. Hormones. Hypo- and hyperfunction. Regulation of thyroid hormones secretion. Parathyroid glands. Localization, structure and functions. Hormones. Hypo- and hyperfunction. Regulation of parathyroid hormone secretion. Practical works 1. 2. 1. 2. Major endocrine glands. Effects of epinephrine on the pupil of a frog. Books recommended Ganong W. F. Review of Medical Physiology. 20th ed; McGraw-Hill Companies, Inc., 2001. – P. 307-321, 383-397. Guyton A. C., Hall J. E. Textbook of Medical Physiology, 12th ed; WB Saunders, 2005. – P. 879-920, 955-1118. Practical work 1. Major endocrine glands. Objective: determining localization of the major endocrine glands. Technique. Look at pic. 1 and write down major endocrine gland: Picture 1. Major endocrine glands. (Male – left, female – right) 4 Result: 1. 3. 5. 7. 2. 4. 6. 8. Conclusion: Practical work 2. Effects of epinephrine on the pupil of a frog. Objective: observing the effects of epinephrine and pituitrine on skin coloration of a frog.. Technique. 1. Apply a drop of adrenaline solution onto the frog’s skin. You should observe changes in skin coloration 1-2 minutes after that. 2. Apply a drop of pituitrine solution onto the frog’s skin. You should observe changes in skin coloration 1-2 minutes after that. Work results and their recording Explain the phenomenon that you’re able to observe. In conclusion describe the mechanism of the effects of epinephrine and pituitrine on skin coloration of the frog. Result: Conclusion: Practical class 2. Hormone regulation of physiological functions: hormonal control of calcium metabolism, pancreas, adrenal cortex, adrenal medulla. 1. 2. 3. 4. 5. Questions for discussion What is the importance of calcium in the body? Explain the regulation of blood calcium level. Endocrine functions of pancreas. Localization, structure and functions. Hormones. diabetes mellitus. Regulation of pancreatic hormones secretion. Enumerate the hormones secreted by the pancreas. Explain the functions and regulation of insulin secretion. Adrenal cortex. Localization, structure and functions. Hormones. Hypo- and hyperfunction. Regulation of adrenal cortex hormones secretion. Classify the hormones secreted by the adrenal cortex. Explain the mechanism of action and regulation of cortisol secretion. 5 6. 7. 8. 9. 10. 1. 1. 2. Enumerate corticosteroids. Explain the mechanism of action and regulation of aldosterone secretion. Adrenal medulla. Localization, structure and functions. Hormones. Hypo- and hyperfunction. Regulation of adrenal medulla hormones secretion. What are catecholamines? Explain the mechanism of action and regulation of catecholamine secretion. Ovaries. Localization, structure and functions. Hormones. Hypo- and hyperfunction. Regulation of estrogens and progesterone secretion. Testis. Localization, structure and functions. Hormones. Hypo- and hyperfunction. Regulation of testosterone secretion. Practical works Determining the deficit of insulin in the organism. Books recommended Ganong W. F. Review of Medical Physiology. 20th ed; McGraw-Hill Companies, Inc., 2001. – P. 322-324, 344-359, 369-380 398-399, 405-432. Guyton, A. C., Hall, J. E. Textbook of Medical Physiology, 12th ed; WB Saunders, 2005. – P. 921-954, 973-986. Practical work 1. Determining the deficit of insulin in the organism. Objective: determining a person’s predisposition to hyperglycaemia. Technique. Answer the following questions: № 1. 2. 3. Question Have you ever had your endocrine gland function examined by the doctor? What was your weight at birth? I feel dryness in the oral cavity all the time. 4. I am worried about the attacks of «thirst». 5. I have a good appetite. 6. I feel weak almost all the time. 7. I feel my skin itching. 8. I have never had any cuts which didn’t heal quickly. How much fluid do you drink daily? 9. 10. 11. How much has your weight changed over the past years? Do you have diabetes in your family history? 6 Value Yes No Yes (1, 62) No (0) Yes (1, 26) No (0) Yes (0,85) No (0) Yes (0,69) No (0) Yes (0,96) No (0) Yes (0,82) No (-0,41) I don’t usually drink any fluid (-0,44) 1 litre (0,73) More than 1 litre (1,3) It has increased (0,13) It has decreased (1,30) None of my relatives has ever had diabetes (-0,31) I don't know (-0,03) 12. I like sweets 13. How much does your weight differ from the normal one? (The normal weight is calculated according to the following formula: «Normal» weight = height – 100 cm Parents (-0,28) Brother or sister (1, 53) Grandfather or grandmother (-0,54) Yes (0,42) No (0,19) Less than 11-20 kg (-0,57) ±10 kg (-0,71) More than 11-21 kg (0,37) Work results and their recording Sum up the points. If the total amount of points is more than 3.0, you should be attributed to risk group. Result: Conclusion: 7