(choices may be used once only or more than once epithelial, nervous or both che
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Question
(choices may be used once only or more than once epithelial, nervous or both chemical structure yclic AMP PG, thromlb greater PGE negative increasing no. of receptors amine, peptide, protein, glycoprotein steroid kidney 1. The chemical messenger of the endocrine system are called: 2. The nervous system functions with much speed than the endocrine system 3. What kind of tissues make up endocrine glands: 4. Which of the two major types of glands is ductless 5. Hormones bind specific 6. Up-regulation increases sensitivity of target cells by 7. Unused hormones circulating in the blood are excreted by the 8. The most widely used method of hormone classification is: 9. Nonsteroid hormones include the following 4 groups: 10. The precursor of all steroid hormones is: 11. Which group of hormones is transported in blood with the help of protein carriers: 12. Hormones that have target cells within the same tissue are called 13. List two groups of tissue hormones: 14. A tissue hormone involved in fever development 15. A second messenger is involved in mechanism/action 16. A well known second messenger is: 17. Hormones bind to fixed receptors in plasma membrane in mechanism/action 18. Receptor is mobile in cytoplasm or nucleus in_mechanism 19. Regulation of gene oocurs in mechanism 20. One bormone produces the opposite effect of another hormonc 21. Onc hormone acts as a primer allowing the second bormone to have its fall effect on a target cell. 22. One of the few hormones that functions on a positive-feodback loop is 23. Insulin secretion is controlled by a -foedback mechanism 24. Name an endocrine gland that responds to neural stimuali 25. Name an endocrine gland that responds to humoral stimuli 26. Name an endocrine gland that responds to hormonal stiml Endosh(adrenaline) hyroxine 12, Chap 26 (choices may be used once only or more than once) Epinephrine fadrenaline) PTH Calciloni pineal piand GHH PRL iodine afoMS OT, ADH pituilary thyroid cortisol zona glomerulosa adrenal medulla posterior pitulary 27. The structure in the body that provides the mind-body" link is the 28. Two nontropic hormones the hypothalamus produces 29. The structure referred to historically as the master gland is the 30. The vascular link between the hypothalamus and the adcnobypopitysis is termod the 31. The neurokypophysis is another name for 32. Secretion of pituitary hormones is regulated by these hypothalamic tropic bormones 33. Two nontropic hormone secrcted by anterior pituitary 34. Thymosin is a hormone that plays a role in: 35. Biological clock, slecp-awake cycles 36 Gland important for overall growth, proper develpmont of all ? systoms 37. T4 is also known as 38. T, and T. is difler from one another in the mumber ofatached so the molecule 39. Two antagonistic homnoecs responsible for blood calcium bomeostasis 40. Made up of both endocrine and exocrine tissues. 41. Hormoncs that exert antagonistic effects on blood levels of glucose 42. Mineralocortiooids are relcased from which part of the adrenal gland? 43. Secretion of 44, Jundagloenenular apparatus secretes in response to a fall in the lood pressuare within the kidbey. 45 Principal Glucocorticoid honmone 46. Epinephrine is secreted by 47. Honmone relcased in resposse to stress 48. Fight or flight hoemoneExplanation / Answer
1. The chemical messenger of the endocrine system are called hormone. They act like signalling molecules which are involved in the regulation of the functions of our body.
2. The nervous system functions with much greater speed than the endocrine system.
3. The endocrine glands are made up of epithelial, nervous or both. The epithelial cells make up the endocrine glands which are aggregated together. They are then embedded into the connective tissue. The pitutary is the master gland of the endocrine system made up of both nerves and epithelial cells.
4. The two major types of ductless glands are pitutary gland and thyroid gland. The pitutary gland produces tropic hormones which are involved in the regulation of other endocrinal hormones. The tthyroid gland secretes hormones required for growth and development.
5. Hormones bind specific receptors.
6. Upregulation increases sensitivity of target cells by increasing no. of receptors. Upregulation is the process of increasing the response to a stimuli. This is achieved by increasing the number of receptors on the surface of a cell.
7. Unused hormones circulating in the blood are excreted by kidneys. Kidneys essenially acts a filter thus removing waste and unused materials from our body.
8. The most widely used method of hormone classification is chemical structure.
9. Non steroid hormones includes the following four groups: amine, peptide, protein and glycoprotein.
9. The precursor of all steroid hormones is Cholesterol. Its acts as a precursor of androgens, estrogen, progesterone etc.
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