14 Questions
Which hormone is released by the hypothalamus and inhibits prolactin secretion?
Dopamine
Where are the osmolar receptors that regulate ADH located?
Supraoptic nuclei
Which hormone is released by the adenohypophysis and does not have its own direct blood supply?
Adrenocorticotropic hormone (ACTH)
What is the main characteristic of nonfunctional pituitary tumors?
Mass effect and decreased prolactin
In which direction is the anterior pituitary located in a schematic diagram of the pituitary and floor of the third ventricle as seen in a midline sagittal view?
To the left
At what level does prolactin usually need to be for symptoms to occur in prolactinoma?
Approximately 150
What is the first-line therapy for acromegaly?
Transsphenoidal resection
Which hormone replacement therapy is indicated for Sheehan’s syndrome?
Corticosteroids and hormone replacement
What is the most frequent presentation of craniopharyngioma?
Endocrine abnormalities
Which complication is frequent postoperatively in patients with craniopharyngioma?
Diabetes insipidus
What causes Nelson’s syndrome?
↑ CRH causing pituitary enlargement
What characterizes Waterhouse–Friderichsen syndrome?
Adrenal gland hemorrhage after meningococcal sepsis infection
What is the best test for diagnosing acromegaly?
Elevated IGF-1
What is the characteristic symptom of Sheehan's syndrome?
Postpartum trouble lactating
Test your knowledge of the anatomy and physiology of the pituitary gland, including the functions of the hypothalamus, neurohypophysis, and adenohypophysis. Explore the regulation of hormone secretion and the roles of key hormones such as ADH, oxytocin, ACTH, TSH, GH, and LH.
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