Hypothalamus + limbic system Flashcards
name some hypothalamus functions?
regulate body temp, hunger, thirst, fatigue, sleep, circadian rhythms
hypothalamus forms the walls of what?
3rd ventricle
what does anterior commissure connect?
anterior parts of temporal lobe
which part of the hypothalamus are the mammillary bodies?
posterior hypothalamus
where are vasopressin/oxytocin stored?
posterior pituitary
where are vasopressin/oxytocin made?
hypothalamus
what increases blood pression and decreases formation of urine?
vasopressin
what nucleus of hypothalamus controls circadian rhythms?
suprachiasmatic nucleus (SCN). responds to light
which nucleus of hypothalamus is bigger in heterosexual vs homosexual men?
interstitial nuclei of the anterior hypothalamus (INAH)-3
which part of hypothalamus has no blood brain barrier?
median eminence (the most ventral part of hypothalamus that’s located between optic chasm and mammillary bodies)
Papez circuit
- hippocampus (via fornix) to mammillary bodies
- mammillary bodies (via mammillothalamic tract) to thalamus
- thalamus (via internal capsule) to cingulate gyrus
- cingulate gyrus to parahippocampal gyrus
- parahippocampal gyrus to hippocampus
damage to amygdala leads to decrease in…
…conditioned fear response
neurohypophesis
posterior portion of pituitary, the part that contains neurons and does not synthesize hormones
adenohypophesis
anterior portion of pituitary gland, the part that contains endocrine cells that synthesize and secrete hormones
name the 3 divisions of the hypothalamus and where they are located
anterior (above optic chiasm), tuberal (above tuber cinereum/pituitary), posterior (above mammillary bodies)
