Which of the following statements is true regarding the pituitary gland?
A. It is separated from the optic chiasma by the sells turcica
B. It is situated deep in the sella. C. The spenoidal air cells lie inferior to it
D. It develops from the base of the 31 ventricle form the pars anterior
E. It is supplied by a branch of the internal carotid artery
Ans. B. It is
situated deep in the sella. ; (C) The spenoidal air cells lie inferior to it.(E) It is supplied by a branch of the internal carotid artery.
• The pituitary gland lies in the sella turcica or pituitary Fossa also
called hypophysis Fossa
• The fossa is roofed by the diaphragmatic sellae over which lies the optic
chiasma.
• It is supplied by sup. and inf. hypophyseal arteries which are branches of Internal Carotid Artery.
•Sphenoidal air Sinus
lies inferior to it.
• Development of ant. pituitary— From Rathke’s
pouch, an evagination of roof of the pharynx.
•Development of post pituitary:
Evagination of the floor of the third
ventricle in the region of infundibulum
