Pituitary Flashcards
What is the embryological origin of the posterior pituitary?
neurological tissue
How many axes does the anterior pituitary have?
5 axes
How does somatostatin affect growth hormone?
decreases GH levels
Name the 2 disease that can result from increased GH
gigantism
acromegaly
What is FSH for?
Gamete production - sperm and eggs
What is LH for?
sex hormone release
If you were dehydrated, which hormone would be released?
increased ADH
Name 2 things that can cause diabetes insipidus
ADH deficiency
ADH resistance
What are the features of hypopituitarism?
poor growth in children
loss of body hair
lethargic
pallor
What are prolactinomas and what do they cause?
prolactin secreting pituitary tumours cause galactorrhoea (spontaneous flow of milk from breast) and infertility
Which hormone regulates prolactin secretion?
dopamine
Name some features of acromegaly
coarse features growth of hands and feet sweating headaches hypertension
What can cause pseudocushings?
excess alcohol consumption
What is the embryological origin of the anterior pituitary?
primitive gut tissue
