Chapter 9 ( diencephalon )

Question 1

Anterior nuclear group of the thalamus input and output ?

Answer 1

Input : mamillary nucleus via mammillothalamic tract

Output : cingulate gyrus via the anterior limb of the internal capsule

Question 2

Function of midline/intralaminar thalamic nuclei ?

Answer 2

Involved in arousal

Question 3

Thiamine deficiency in alcoholics causes degeneration of which structures in the brain ?

Answer 3

Dorsomedial nucleus of the thalamus
Mammillary bodies
Hippocampus
Vermis of the cerebellum

Question 4

Medial nuclear group of the thalamus input and output ?

Answer 4

Input : from
Amygdala
Prefrontal cortex
Temporal lobe

Output : to
Prefrontal cortex
Cingulate gyrus

Question 5

Lateral hypothalamic nucleus function ?

Answer 5

Feeding center

Question 6

Ventromedial hypothalamic nucleus function ?

Answer 6

Satiety center

Question 7

Syprachiasmatic nucleus function ?

Answer 7

Regulates circadian rhythms and receives direct retinal input

Question 8

Arcuate nucleus function ?

Answer 8

Produces hypothalamic releasing and inhibiting factors
Gives rise to tuberohypophysial tract
Has neurons that produce dopamine

Question 9

Preoptic area nucleus function ?

Answer 9

Regulates release of gonotrophic hormones , contains sexually dimorphic nucleus

Question 10

Dorsomedial nucleus of the hypothalamus function ?

Answer 10

When stimulated causes savage behavior

Question 11

Pinealocytes synthesizes ?

Answer 11

Melatonin
Serotonin
Cholecystokinin