Pituitary Homrone Regulation And Presentation Of Pituitary Disease 08.12.23

Question 1

How does the anterior pituitary receive a blood supply?

Answer 1

The anterior pituitary has no arterial blood supply but receives blood through a portal venous circulation from the hypothalamus

Question 2

What hormones are released by the hypothalamus?

Answer 2

GHRH
SMS
CRH
TRH
Dopamine

Question 3

What hormones are released by the anterior pituitary?

Answer 3

GH
LH
FSH
ACTH
TSH
Prolactin

Question 4

What hormones are released by the posterior pituitary?

Answer 4

ADH and oxytocin

Question 5

What are the 3 parts of the body involved in the pituitary-thyroid axis?

Answer 5

Hypothalamus
Pituitary
Thyroid

Question 6

Review T4 and T3 in thyroid

Question 7

What body parts are involved in the pituitary gonadal axis

Answer 7

Hypothalamus
Pituitary
Testosterone

Question 8

What body parts are involved in the HPA axis

Answer 8

Hypothalamus
Pituitary
Adrenal glands

Question 9

What body parts are involved in the GH/IGF-I axi?s

Answer 9

Hypothalamus
Pituitary
Liver

Question 10

What are the 3 causes from presentation of pituitary tumours?

Answer 10

Pressure on local structure e.g. optic nerve (bitemporal hemianopia)

Pressure on normal pituitary (hypopituitarism)

Functioning tumour (prolactinoma, acromegaly, cushing’s disease)