Limbic system Flashcards
learn.
is the hypothamulus part of the diencephalon?
yes
what is the role of the diencepholon? 1/2
intergrates sensory and motor information
- the info is filterd and refined before sending it to the cortex
what is the role of the diencepholon? 2/2
Sensory relay to the cortex
-determination and directing attention to one stimulus over another
what are the 2 roles of the diencephlon?
sensory relay to the cortex
integrates sensory and motor info
what does the hypothamulsus regulate?
ANS, endocrine system, body temp, thirst
the dicephalon and the hypothalamus how are they linked?
linked between endocrine and NS
what does diencphalon and the hypothalamus release?
tropic hormones that regulate release of anterior pituitary hormones
how does the hypothamulus regualte the pineal gland
through the production of melatonin (produced by the pineal gland)
it is involed in the circadum rythm and sleep and wake cycles this is thru melatonin
what the direct inputs in the ANS controlled by the hypothamulus
sensory input
visceral input
what are the indirect inputs in the ANS controlled by the hypothamulus
input from limbic system
Suprachiasmatic Nucleus (SCN)
Baroreceptors and Chemoreceptors
how does baroreceptors and chemorecpetors have an effect on the ANS thats controlled by the hypothamulus
Baroreceptors, which sense changes in blood pressure, and chemoreceptors, which detect changes in the chemical composition of the blood, send signals to the hypothalamus. The hypothalamus processes this information and influences autonomic responses to maintain homeostasis.
what are the structires of the limbic system?
amygdala
hippcampus
parts of the thalmus
parts of the hypothamulus
what does the amygdala in the limbic system do>
agression centre of the brain (stimulate fearm anxierty etc)
what does the hippcampus in the limbic system do?
(looks like a sea horse) forms new memories converts short term memory into long term memory
parts of the thalmius in the limbic systme what does it do>
relay station