← Back to Session

Time Completed: 01:04:43

Final Score 49%

89
91

Questions

  • Q1. ✓ Correct
  • Q2. X Incorrect
  • Q3. X Incorrect
  • Q4. ✓ Correct
  • Q5. ✓ Correct
  • Q6. ✓ Correct
  • Q7. X Incorrect
  • Q8. ✓ Correct
  • Q9. X Incorrect
  • Q10. X Incorrect
  • Q11. X Incorrect
  • Q12. ✓ Correct
  • Q13. ✓ Correct
  • Q14. X Incorrect
  • Q15. ✓ Correct
  • Q16. ✓ Correct
  • Q17. ✓ Correct
  • Q18. X Incorrect
  • Q19. ✓ Correct
  • Q20. ✓ Correct
  • Q21. ✓ Correct
  • Q22. ✓ Correct
  • Q23. ✓ Correct
  • Q24. X Incorrect
  • Q25. X Incorrect
  • Q26. X Incorrect
  • Q27. X Incorrect
  • Q28. ✓ Correct
  • Q29. X Incorrect
  • Q30. ✓ Correct
  • Q31. X Incorrect
  • Q32. X Incorrect
  • Q33. X Incorrect
  • Q34. X Incorrect
  • Q35. X Incorrect
  • Q36. ✓ Correct
  • Q37. ✓ Correct
  • Q38. X Incorrect
  • Q39. ✓ Correct
  • Q40. ✓ Correct
  • Q41. ✓ Correct
  • Q42. X Incorrect
  • Q43. X Incorrect
  • Q44. ✓ Correct
  • Q45. ✓ Correct
  • Q46. ✓ Correct
  • Q47. ✓ Correct
  • Q48. ✓ Correct
  • Q49. X Incorrect
  • Q50. ✓ Correct
  • Q51. X Incorrect
  • Q52. X Incorrect
  • Q53. X Incorrect
  • Q54. ✓ Correct
  • Q55. X Incorrect
  • Q56. ✓ Correct
  • Q57. X Incorrect
  • Q58. X Incorrect
  • Q59. ✓ Correct
  • Q60. ✓ Correct
  • Q61. ✓ Correct
  • Q62. ✓ Correct
  • Q63. ✓ Correct
  • Q64. X Incorrect
  • Q65. ✓ Correct
  • Q66. X Incorrect
  • Q67. ✓ Correct
  • Q68. X Incorrect
  • Q69. X Incorrect
  • Q70. X Incorrect
  • Q71. X Incorrect
  • Q72. X Incorrect
  • Q73. X Incorrect
  • Q74. X Incorrect
  • Q75. ✓ Correct
  • Q76. ✓ Correct
  • Q77. X Incorrect
  • Q78. X Incorrect
  • Q79. ✓ Correct
  • Q80. ✓ Correct
  • Q81. ✓ Correct
  • Q82. ✓ Correct
  • Q83. ✓ Correct
  • Q84. ✓ Correct
  • Q85. X Incorrect
  • Q86. X Incorrect
  • Q87. X Incorrect
  • Q88. ✓ Correct
  • Q89. X Incorrect
  • Q90. X Incorrect
  • Q91. X Incorrect
  • Q92. ✓ Correct
  • Q93. ✓ Correct
  • Q94. ✓ Correct
  • Q95. ✓ Correct
  • Q96. X Incorrect
  • Q97. ✓ Correct
  • Q98. Skipped
  • Q99. ✓ Correct
  • Q100. X Incorrect
  • Q101. X Incorrect
  • Q102. ✓ Correct
  • Q103. X Incorrect
  • Q104. ✓ Correct
  • Q105. ✓ Correct
  • Q106. X Incorrect
  • Q107. X Incorrect
  • Q108. ✓ Correct
  • Q109. ✓ Correct
  • Q110. X Incorrect
  • Q111. ✓ Correct
  • Q112. X Incorrect
  • Q113. ✓ Correct
  • Q114. ✓ Correct
  • Q115. ✓ Correct
  • Q116. X Incorrect
  • Q117. X Incorrect
  • Q118. X Incorrect
  • Q119. ✓ Correct
  • Q120. X Incorrect
  • Q121. ✓ Correct
  • Q122. X Incorrect
  • Q123. X Incorrect
  • Q124. X Incorrect
  • Q125. ✓ Correct
  • Q126. X Incorrect
  • Q127. X Incorrect
  • Q128. X Incorrect
  • Q129. ✓ Correct
  • Q130. X Incorrect
  • Q131. X Incorrect
  • Q132. X Incorrect
  • Q133. X Incorrect
  • Q134. ✓ Correct
  • Q135. ✓ Correct
  • Q136. X Incorrect
  • Q137. X Incorrect
  • Q138. X Incorrect
  • Q139. ✓ Correct
  • Q140. X Incorrect
  • Q141. ✓ Correct
  • Q142. X Incorrect
  • Q143. X Incorrect
  • Q144. X Incorrect
  • Q145. ✓ Correct
  • Q146. X Incorrect
  • Q147. ✓ Correct
  • Q148. X Incorrect
  • Q149. ✓ Correct
  • Q150. X Incorrect
  • Q151. ✓ Correct
  • Q152. X Incorrect
  • Q153. ✓ Correct
  • Q154. X Incorrect
  • Q155. X Incorrect
  • Q156. ✓ Correct
  • Q157. ✓ Correct
  • Q158. ✓ Correct
  • Q159. X Incorrect
  • Q160. ✓ Correct
  • Q161. X Incorrect
  • Q162. ✓ Correct
  • Q163. ✓ Correct
  • Q164. ✓ Correct
  • Q165. ✓ Correct
  • Q166. X Incorrect
  • Q167. ✓ Correct
  • Q168. ✓ Correct
  • Q169. X Incorrect
  • Q170. X Incorrect
  • Q171. ✓ Correct
  • Q172. X Incorrect
  • Q173. ✓ Correct
  • Q174. ✓ Correct
  • Q175. X Incorrect
  • Q176. X Incorrect
  • Q177. X Incorrect
  • Q178. ✓ Correct
  • Q179. X Incorrect
  • Q180. ✓ Correct

Physiology

Endocrine

Question 66 of 180

Dopamine released from the hypothalamus acts to cause which of the following:

Answer:

Prolactin release from the anterior pituitary gland is inhibited by dopamine (also called prolactin-inhibiting hormone (PIH).

Hypothalamic-Pituitary Axis

Physiology / Endocrine / Pituitary Function

Last Updated: 26th July 2024

Pituitary Hormone Hypothalamic Releasing/Inhibiting Factors Target Organ Effect
Growth hormone (GH)
  • Stimulated by growth hormone-releasing hormone (GHRH)
  • Inhibited by somatostatin (also called growth hormone–inhibiting hormone (GHIH))
 Liver, bone, muscles Direct effect (regulates growth and metabolic rate)
Adrenocorticotropic hormone (ACTH)
  • Stimulated by corticotropin-releasing hormone (CRH)
 Adrenal gland Stimulates release of cortisol
Follicle-stimulating hormone (FSH) and luteinising hormone (LH)
  • Stimulated by gonadotropin-releasing hormone (GnRH)
 Gonads Stimulates release of testosterone/oestrogen and production of eggs/sperm
Thyroid-stimulating hormone (TSH)
  • Stimulated by thyrotropin releasing hormone (TRH)
 Thyroid gland Stimulates release of thyroid hormones (T4/T3)
Prolactin
  • Weakly stimulated by TRH, oxytocin and ADH
  • Inhibited by dopamine (also called prolactin-inhibiting hormone (PIH))
 Mammary glands Direct effect (stimulates lactation)
Antidiuretic hormone (ADH)
  • From posterior pituitary
 Kidneys Direct effect (regulates water balance)
Oxytocin
  • From posterior pituitary
 Female reproductive system Direct effect (stimulates milk ejection in suckling and uterine contractions in childbirth)

By OpenStax College [CC BY 3.0 , via Wikimedia Commons

Hypothalamus-Pituitary Axis. (Image by OpenStax College [CC BY 3.0 , via Wikimedia Commons)

Report A Problem

Is there something wrong with this question? Let us know and we’ll fix it as soon as possible.

Loading Form...

Close
  • Biochemistry
  • Blood Gases
  • Haematology
Biochemistry Normal Value
Sodium 135 – 145 mmol/l
Potassium 3.0 – 4.5 mmol/l
Urea 2.5 – 7.5 mmol/l
Glucose 3.5 – 5.0 mmol/l
Creatinine 35 – 135 μmol/l
Alanine Aminotransferase (ALT) 5 – 35 U/l
Gamma-glutamyl Transferase (GGT) < 65 U/l
Alkaline Phosphatase (ALP) 30 – 135 U/l
Aspartate Aminotransferase (AST) < 40 U/l
Total Protein 60 – 80 g/l
Albumin 35 – 50 g/l
Globulin 2.4 – 3.5 g/dl
Amylase < 70 U/l
Total Bilirubin 3 – 17 μmol/l
Calcium 2.1 – 2.5 mmol/l
Chloride 95 – 105 mmol/l
Phosphate 0.8 – 1.4 mmol/l
Haematology Normal Value
Haemoglobin 11.5 – 16.6 g/dl
White Blood Cells 4.0 – 11.0 x 109/l
Platelets 150 – 450 x 109/l
MCV 80 – 96 fl
MCHC 32 – 36 g/dl
Neutrophils 2.0 – 7.5 x 109/l
Lymphocytes 1.5 – 4.0 x 109/l
Monocytes 0.3 – 1.0 x 109/l
Eosinophils 0.1 – 0.5 x 109/l
Basophils < 0.2 x 109/l
Reticulocytes < 2%
Haematocrit 0.35 – 0.49
Red Cell Distribution Width 11 – 15%
Blood Gases Normal Value
pH 7.35 – 7.45
pO2 11 – 14 kPa
pCO2 4.5 – 6.0 kPa
Base Excess -2 – +2 mmol/l
Bicarbonate 24 – 30 mmol/l
Lactate < 2 mmol/l

Join our Newsletter

Stay updated with free revision resources and exclusive discounts

©2017 - 2024 MRCEM Success