[ANAT] PITUITARY GLAND

Question 1

Site of pituitary gland

Answer 1

hypophyseal fossa

Question 2

pituitary gland is separated from pons by

Answer 2

dorsum sellae

Question 3

pituitary gland is connected to hypothalamus by

Answer 3

infundibulum

Question 4

anterior relation

Answer 4

tuberculum sellae

Question 5

posterior relation

Answer 5

dorsum sellae

Question 6

superior relation

Answer 6

diaphragma sellae
optic chiasma

Question 7

inferior relation

Answer 7

body of sphenoid
sphenoidal air sinus

Question 8

relations of gland on either side

Answer 8

cavernous sinus + its contents

Question 9

parts of adenohypophysis

Answer 9

pars distalis
pars intermedia
pars tuberalis

Question 10

structure encircling infundibulum

Answer 10

pars tuberalis

Question 11

parts of neurohypophysis

Answer 11

pars nervosa
infundibulum
medial eminence

Question 12

anterior lobe consists of

Answer 12

pars disatalis
pars tuberalis

Question 13

posterior lobe consists of

Answer 13

pars intermedia
pars nervosa
infundibulum
medial eminence

Question 14

arterial supply of adenohypophysis

Answer 14

superior hypophyseal arteries

Question 15

arterial supply of neurohypophysis

Answer 15

inferior hypophyseal arteries

Question 16

superior hypophyseal arteries arise from

Answer 16

cerebral part of ICA
(4th part of ICA)

Question 17

inferior hypophyseal arteries arise from

Answer 17

cavernous part of ICA
(3rd part of ICA)

Question 18

main transporter of hormones in blood

Answer 18

hypothalamic hypophyseal portal vein

Question 19

venous drainage

Answer 19

cavernous sinus

Question 20

forms infundibular ring

Answer 20

inferior hypophyseal arteries

Question 21

receives hormones from supraoptic & paraventricular nuclei

Answer 21

inferior hypophyseal arteries

Question 22

supraoptic nucleus secretes

Answer 22

ADH to posterior pituitary

Question 23

paraventricular nucleus secretes

Answer 23

oxytocin to posterior pituitary

Question 24

infundibular/arcuate nucleus secrete

Answer 24

release & release inhibiting hormones to the anterior pituitary (via portal circulation)

Question 25

upward pressure of pituitary tumors causes

Answer 25

bitemporal hemianopia

Question 26

downward pressure of pituitary tumors causes

Answer 26

ballooning of sellae

Question 27

lateral pressure on cavernous sinus causes

Answer 27

eye congestion
diplopia

Question 28

other effects of pituitary tumors

Answer 28

endocrinal disturbances

Question 29

embryological origin of pituitary gland

Answer 29

ectodermal

Question 30

2 primordia of pituitary gland

Answer 30

1-upward growth from ectodermal roof of stomodeum=hypophysial diverticulum (Rathke’s pouch)

2-downward growth from neuroectoderm of floor of diencephalon= neurohypophysial diverticulum (infundibular process)

Question 31

pituitary cleft is present between

Answer 31

pars distalis & intermedia

Question 32

pituitary cleft is

Answer 32

a remnant of Rathke’s pouch

Question 33

craniopharyngeal canal present in

Answer 33

sphenoid bone
original course of stalk of Rathke’s pouch

Question 34

anomalies of pituitary gland

Answer 34

craniopharyngioma
pharyngeal hypophysis

Question 35

craniopharyngioma is?

Answer 35

remnant of stalk of Rathke’s pouch in roof of oropharynx

Question 36

craniopharyngioma causes

Answer 36

hypopituitarism