20. Hypothalamus 1

Question 1

Where is hypothalamus located?

Answer 1

Under thalamus at the base of the brain

Question 2

What structure connects the hypothalamus to the posterior pituitary?

Answer 2

Infundibulum

Question 3

Neural pathway connects?

Answer 3

Hypothalamus to PP

Question 4

Vascular link connects?

Answer 4

Hypothalamus to AP

Question 5

Embryological origin of anterior pituitary?

Answer 5

Epithelium of pharynx (Rathke’s Pouch)

Question 6

Embryological origin of posterior pituitary?

Answer 6

Neural tissue from hypothalamus

Question 7

What does the direct/portal route between the hypothalamus and AP permit?

Answer 7

Hypothalamus hypophysiotropic hormones to act immediately on AP cells before getting diluted/destroyed in general circulation

Question 8

Order of flow of Hypophyseal System?

Answer 8

Artery → Capillary bed of median eminence → Portal vessel → Capillary bed of adenohypophysis → Vein

Question 9

Where are neurohormones produced?

Answer 9

Hypothalamus

Question 10

What do Somatotropes secrete?

Answer 10

GH

Question 11

What do Corticotropes secrete?

Answer 11

ACTH Adrenocorticotropic Hormone

Question 12

What do Thyrotropes secrete?

Answer 12

TSH

Question 13

What do Gonadotropes secrete?

Answer 13

FSH + LH

Question 14

What do Lactotropes secrete?

Answer 14

PRL

Question 15

What regulates release of AP hormones?

Answer 15

1. Hypothalamic hypophysiotropic hormones

2. Feedback by target hormones

Question 16

Where is ADH typically formed?

Answer 16

SON

Question 17

Where is Oxytocin typically formed?

Answer 17

PVN