61) The Integrating center IC3 is the b. Anterior pituitary c. Thyroid d. Non-En

Question

61) The Integrating center IC3 is the b. Anterior pituitary c. Thyroid d. Non-Endocrine target cells 62) The Trophic Hormone (A) produced by IC1 is a Thyroxin b. TSH c. TRH d. Triiodothyronine 63) The Trophic Hormone (B) produced by IC2 is a. Thyroxin b. TSH c. TRH d. Triiodothyronine 64) The Hormone (C) produced by IC3 is a. Thyroxin b. TSH C. TRH d. Triiodothyronine 65) As the level of TRH increases it would a. Limit the production of TSH b. Increase the production of TSH c. Increase the production of Thyroxin d. Both b and c 66) As the level of TSH increases it would directly a. Limit the production of TSH b. Limit the production of TRH c. Both a and b d. Neither a nor b

Explanation / Answer

61. c) Thyroid gland produces T4. You can also tell it from its butterfly shape

62. c) Hypothalamus produces Thyrotropin Releasing Hormore (TRH)

63. b) Pituitary produces TSH

64. a) The thyroid gland produces Thyroxin (T4) which is the prohormone for T3

65. d) TRH will directly increase TSH and indirectly increase T4

66. b) TSH exerts direct negative feedback on TRH release

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