** neuro- limbic system Flashcards
critical in autonomic, endocrine, emotional, somatic functions; maintains homeostasis
hypothalamus
3 types of hypothalamic connections
limbic system
output to pituitary
interconnects visceral/somatic nuclei
damage to limbic system would lead to
loss of higher level thinking, primitive functions, feelings and emotions
how does hypothalamus comm with pituitary?
infundibular stalk
hypothalamus organizations
perivent
medial
lateral
rostral continuation of PAG
perivent
rostral continuation of reticular formation (RF)
lateral
location of thalamic nuclei, geniculates
medial
3 regions of hypothalamus
anterior
tubercle
posterior
nuclei for periventricular zone of anterior hypothalamus
suprachiasmatic
nuclei for periventricular zone of tuberal hypothalamus
arcuate
nuclei for medial zone of anterior hypothalamus
paraventricular
supraoptic
nuclei for lateral zone of tuberal hypothalamus
tuberomammilary
suprachiasmatic nuclei
direct retinal input - circadian rhythm
melatonin receptors
sensitive to pineal gland activity
involved in feeding behaviors
arcuate nucleus
lateral preoptic
promotes sleep
tuberomammillary
histaminergic projections to cortex and thalamus
nuclei for lateral zone of anterior hypothalamus
lateral preoptic
utilized by posterior pituitary ; hormones travel down axons and are released in neurohypophysis
supraoptic and paraventricular nuclei
medial zone of ant. hypothalamus
hypothalamus inputs
areas of forebrain- limbic system
brain and spinal cord
visceral and somatosensory inputs to hypothalamus
brainstem & spinal cord via MFB and DLF
heart rate, O2, pain, outside stimuli
T/F? Hypothalamus only controls adenohypophysis
false; controls both neurohypophysis and adenohypophysis
cingulate gyrus location
deep to temporal
insular lobe
3 nuclei groups of amygdala
medial
central
basolateral