The Endocrine System Exam free essay sample

Which of the following statements about the endocrine system is NOT correct? A) It uses hormones, which are transported by the blood, to communicate with distant tissues. B) Its hormones must bind to specific receptor sites in order to have effects on a tissue. C) It targets are limited to muscles, glands and nerves. D) It may take seconds, hours, or days to respond to a stimulus. E) Its actions may last seconds, hours, or days. ____ 33. Which mediator is considered to be both a neurotransmitter and a hormone? A) insulin B) norepinephrine C) thyroid hormone D) somatotropin E) aldosterone ____ 34. Which of the following is NOT an endocrine gland? A) thyroid gland B) adrenal gland C) sudoriferous gland D) pituitary gland E) parathyroid gland ____ 35. Which of the following does NOT contain endocrine tissue? A) hypothalamus B) thymus C) heart D) gall bladder E) kidney ____ 36. The anterior pituitary gland responds to gonadotropin releasing hormone (GnRH), but the posterior pituitary gland does not. We will write a custom essay sample on The Endocrine System Exam or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Why? A) Only anterior pituitary gland is permeable to GnRH. B) Only the anterior pituitary gland is vascular. C) Only the anterior pituitary gland is connected by neurons to the hypothalamus. D) Only the anterior pituitary gland is connected to a duct carrying GnRH. E) Only the anterior pituitary gland has receptors for GnRH. AP II Chapter 18- The Endocrine System Exam 1 Name:_______________________ ____ 37. A patient has a tumor causing excessive production of parathyroid hormone (PTH). How will his body attempt to compensate for excessive amounts of PTH? A) His body will up-regulate the receptors for PTH to become less sensitive to that hormone. B) His body will up-regulate the receptors for PTH to become more sensitive to that hormone. C) His body will down-regulate the receptors for PTH to become less sensitive to that hormone. D) His body will down-regulate the receptors for PTH to become more sensitive to that hormone. E) His body will make hormone blockers that prevent PTH from binding to receptors. ____ 38. Which of the following statements about paracrine substances is correct? A) Paracrine substances act on nearby tissues without first entering the blood. B) Paracrine substances are inactivated quickly; their effects are short-lived. C) Interleukin-2 (IL-2) is an example of a paracrine substance. D) A and B are correct. E) A, B and C are correct. ____ 39. A patient with hepatitis B has reduced liver function. How will reduced function of her liver affect levels of hormones in her blood or urine? A) There will be more hormones in the blood and fewer hormone by-products in the urine. B) There will be fewer hormones in the blood and more hormone by-products in the urine. C) There should be no effect on blood hormone levels, but urine hormone levels will increase. D) There will be more hormones in the blood and more hormone by-products in the urine. E) There will be fewer hormones in the blood and fewer hormone by-products in the urine. ____ 40. Each of the following is a lipid-soluble hormone EXCEPT: A) aldosterone B) thyroid hormone C) insulin D) nitric oxide E) cortisone ____ 41. Which of the following classes of hormones is water-soluble? A) eicosanoids B) amines C) peptides D) proteins E) All of these are correct. AP II Chapter 18- The Endocrine System Exam 1 Name:_______________________ ____ 42. What do T3 and T4 have in common with epinephrine and norepinephrine? A) They are all water-soluble. B) They are all lipid-soluble.