Pituitary Homrone Regulation And Presentation Of Pituitary Disease 08.12.23 Flashcards
How does the anterior pituitary receive a blood supply?
The anterior pituitary has no arterial blood supply but receives blood through a portal venous circulation from the hypothalamus
What hormones are released by the hypothalamus?
GHRH
SMS
CRH
TRH
Dopamine
What hormones are released by the anterior pituitary?
GH
LH
FSH
ACTH
TSH
Prolactin
What hormones are released by the posterior pituitary?
ADH and oxytocin
What are the 3 parts of the body involved in the pituitary-thyroid axis?
Hypothalamus
Pituitary
Thyroid
Review T4 and T3 in thyroid
What body parts are involved in the pituitary gonadal axis
Hypothalamus
Pituitary
Testosterone
What body parts are involved in the HPA axis
Hypothalamus
Pituitary
Adrenal glands
What body parts are involved in the GH/IGF-I axi?s
Hypothalamus
Pituitary
Liver
What are the 3 causes from presentation of pituitary tumours?
Pressure on local structure e.g. optic nerve (bitemporal hemianopia)
Pressure on normal pituitary (hypopituitarism)
Functioning tumour (prolactinoma, acromegaly, cushing’s disease)