25. Hormones that directly activate genes are classified as ______. a. Water insoluble b. Water soluble c. Amino acid based d. G proteins 26. The islets of Langerhans are found in which endocrine organ? a. Thyroid gland b. Parathyroid gland c. Pancreas d. Adrenal gland 27. Oxytocin in produced in the ______. a. Ovary b. Hypothalamus c. Anterior pituitary gland d. Posterior pituitary gland 28. This hormone is involved in sodium regulation and therefore water balance. a. ADH b. Aldosterone c. Cortisol d. Glucagon e. DHEA 29. The target organ of thyrotropin-stimulating hormone is the ______. a. Posterior pituitary gland b. Anterior pituitary gland c. Thyroid gland d. Hypothalamus e. Thymus gland 30. ______ brain regulates the endocrine system. a. Hypothalamus b. Cerebral cortex c. Thalamus d. Neurohypophysis 31. The anterior pituitary stimulates other endocrine organs by secreting a group of hormones called ______. a. Releasing factors b. Tropic hormones c. Neurotransmitters d. Target hormones e. None of the above 32. Gigantism is a result of hypersecretion of this hormone. a. Growth hormone b. Thyroxine c. Cortisone d. Parathormone 33. Hypoglycemia is a result of a hypersecretion of which hormone? a. Glucagon b. Insulin c. Calcitonin d. Somatostatin 34. Cushing's disease is caused by ______. a. Hyposecretion of the adrenal cortex b. Hypersecretion of the adrenal cortex c. Hyposecretion of the pancreas d. Hypersecretion of the pancreas 35. Exophthalmos is a sign of hypersecretion of this hormone. a. Parathormone b. Thyroxine c. Calcitonin d. Growth hormone
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The anterior pituitary stimulales other = cndostin [sccreting group of honnones called Br Relcasing factors Tropic hormone> Neurotransmillers Target hormones None of the above Show more…
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If the level of anterior pituitary TSH release is greater than the synthesis of thyroid T3 and T4, one may say that this individual would: A. have a reduced BMR B. have problems dissociating oxyhemoglobin C. most likely be hypothyroid D. all of the above E. only A and B The hypothalamic-hypophyseal tracts: A. are partly contained within the infundibulum B. conduct aldosterone to the hypophysis C. are the site of prolactin synthesis D. connect the hypophysis to the posterior pituitary gland. What makes a cell responsive to a particular hormone? A. the chemical properties of the hormone B. the presence of a receptor for that particular hormone C. the chemical properties and the presence of a receptor for that particular hormone D. the location of the target cells in the body E. the site where the hormone is secreted The hormone that increases the rate of glycogen breakdown and glucose release by the liver is: A. glucagon B. epinephrine C. insulin D. glucocorticoid E. somatostatin Joan has been playing basketball for several hours now and has been sweating profusely to compensate for an increase in her body temperature. During this event, Joan's blood pressure: A. increases B. decreases
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Part A If the anterior pituitary is responsible for hyperthyroidism, the level of TSH will be reduced along with the levels of T3 and T4, which are the thyroid hormones; the level of TRH from the hypothalamus will be elevated. Part B In a nonfunctioning adenoma of the corticotrophs, which are the cells that secrete ACTH, the CRH level will be reduced, and the cortisol level will be reduced. Part C Cushing’s disease is caused by a pituitary adenoma, resulting in an increase in blood cortisol; Cushing’s syndrome is an elevated cortisol level as the result of some other cause. If a patient has an elevated cortisol level and they are found to have a tumor of the adrenal cortex, the condition would be diagnosed as Cushing’s syndrome.
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Name and describe the locations of the hypothalamus and pituitary gland and list the hormones that they secrete. Describe the actions of the various hormones of the pituitary gland and their contributions to homeostasis. Explain how the secretion of each pituitary hormone is controlled. Questions: Differentiate between the posterior and anterior pituitary lobes and how they communicate with the hypothalamus. Name and describe the hormones that are released from the posterior pituitary gland. Name and describe the hormones that are released from the anterior pituitary gland. What is the hypophyseal portal system? Terminology: Pituitary (neurohypophysis) Pituitary (adenohypophysis) Portal system Releasing and inhibiting hormones Hormone (desmopressin) Stimulating hormone (TSH) Stimulating hormone (MSH) Hormone (ACTH) Hormone (LH) Stimulating hormone (FSH) Hormone (GH) (PRL)
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