Pituitary Homrone Regulation And Presentation Of Pituitary Disease 08.12.23 Flashcards

1
Q

How does the anterior pituitary receive a blood supply?

A

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

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2
Q

What hormones are released by the hypothalamus?

A

GHRH
SMS
CRH
TRH
Dopamine

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3
Q

What hormones are released by the anterior pituitary?

A

GH
LH
FSH
ACTH
TSH
Prolactin

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4
Q

What hormones are released by the posterior pituitary?

A

ADH and oxytocin

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5
Q

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

A

Hypothalamus
Pituitary
Thyroid

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6
Q

Review T4 and T3 in thyroid

A
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7
Q

What body parts are involved in the pituitary gonadal axis

A

Hypothalamus
Pituitary
Testosterone

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8
Q

What body parts are involved in the HPA axis

A

Hypothalamus
Pituitary
Adrenal glands

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9
Q

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

A

Hypothalamus
Pituitary
Liver

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10
Q

What are the 3 causes from presentation of pituitary tumours?

A

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

Pressure on normal pituitary (hypopituitarism)

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

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