Endo Anatomy

Question 1

What is the location of pituitary gland?

Answer 1

In the hypophyseal fossa of sella turcica of sphenoid bone

Question 2

What are the lobes of pituitary gland and their parts?

Answer 2

1. Anterior lobe ( adenohypophysis )→ pars distalis, pars intermedia and pars tuburalis
2. Posterior lobe ( neurohypophysis )→ pars nervosa and infundibulum (stalk of gland)

Question 3

What are the relations of pituitary gland?

Answer 3

1. Anterior → sphenoid sinus and optic nerve
2. Posteriors → dorsal sellae , pons and basilar artery
3. Superior →diaphragma sellae
4. Inferiors → sphenoid air sinus
5. Lateral → intercavernous sinus

Question 4

What is diaphragma sella ?

Answer 4

It is a double fold of dura matter which have central aperture for the passage of infundibulum and it separates anterior pituitary from optic chiasma

Question 5

Vasiculature of pituitary gland?

Answer 5

Superior and inferior hypophyseal arteries which are branches of internal carotid artery.
Veins drains into intercovernous sinus

Question 6

Vasiculature of pituitary gland?

Answer 6

Superior and inferior hypophyseal arteries which are branches of internal carotid artery.
Veins drains into intercovernous sinus

Question 7

Pituitary gland is also known as?

Answer 7

Master gland
Hypophysis cerebri

Question 8

What is the embryonic origin of anterior and posterior lobe of pituitary gland.?

Answer 8

1. Anterior lobe → oral ectoderm (stemodium)→ outpouch from roof of pharynx → Rathke’s pouch
2. Posterior lobe → neuroectodlerm → embryonic fore brain

Question 9

From which nuclei of hypothalamus does ADH and oxytocin are secreted?

Answer 9

Supra optic and paraventricular respectively

Question 10

Which part of brain does pituitary gland below to?

Answer 10

To the didenceyhalon of fore brain