Limbic system

Question 1

بسم الله الرحمن الرحيم وبه نستعين
________________________
limbic system is ?>

Answer 1

C shaped subcortical strucures responsible for
Memory
Emotions
Incentive behavior

Question 2

MENTION Parts of limbic system

Answer 2

Cortex:
LHp
Limbic lobe
Hippocampal formation
Prefrotnal cortex
____________________
Nuclei :
HAT
Hypotahalmus
anterior nucleus of thalamus
Amygdloid nucleus
The septal areas

Question 3

Limbic lobe formead of ?

Answer 3

SCIP
Subcllosal areas
Cingulate gyreus
Issthmus
parahippcampus

Question 4

Hippocampal fomration =

Answer 4

HDE
Hippocampus
dentate gyreus
Entorhinal cortex of parahippocamapl gyrus

Question 5

Hippocampus lies…… to the parahippocamapl gyrus in the ,,,,and ,,,,,wall of inferior horn of ,,,,ventricle

Answer 5

Medial
Floor and medial
lateral ventricle

Question 6

Extension of hippocamus from ?

Answer 6

Amygdala to splenium

Question 7

Fibers of hippocampus

Answer 7

Alveus
Fimbria
Fronix
as sea horse

Question 8

Fronix conncets?

Answer 8

Hippocampus with Mammilary bodies and septal areas of hypothalamus

Question 9

hippocamap commisure conncets

Answer 9

two fronix

Question 10

Body of fornix connected to undersurface corpus callosum by

Answer 10

Septum palliucium

Question 11

The fimbria of fornix form

Answer 11

posterior column then bodu then anterior columns to mamillary bodies and septal areas

Question 12

Amydala is a group of unclei close to tail of ,,,,,,,, nucleus and ,,,,,,,to hippocampus at tip of inferior horn of ,,,,,,,,,,,,?
Connected with processinig ……………
Larger in …….. for ……….
The main output is ,,,,,,,,,,,,,,curving around,,,,,,,,,,to terminate on ,,,,,&,,,,,,&<,,,,,,,,

Answer 12

Caudate
Anterior
Lateral ventricle
Feelings of anger and fear
Males for sexual dimorphism
StriaTerminalis
Thalamus
Hypothalamus,septal areas and fronix

Question 13

Septal areas formed of sparse …matter that lies in,,,,,, just front of the lamina terminalis
____________________
connectied to hippocampus via ,,,,,,
_________________
Imp ?

Answer 13

Grey
Septum pellucidum
_________________
fronix
_______________
Center of pleasure
Secretion of Ach for memory consolidation

Question 14

The role of limbic sstem in memory consolidation needs perserved integrity of ?

Answer 14

Hippocamapl formation
Papez circuit

Question 15

papez circuit

Answer 15

Ex:
visual stimuluts go to viusal associaton cortex then cingulate gurys to parahippcampus to hippocampus circuting potentinating memory then through fronix to mamillary bodies then through mamaillothalamic tract to anterior thalamic Nucleus then to cingulat through thalamogeniculate then to asscocaiton cortex to be part of the brain long memory

Question 16

Amydala is responsible for ,,,,,overactivity for ….,…….
Connections :
Input from ,,,,,, invloving painful stimuli perception
Reciprocal connection with ,,,,,,&,,,,,,,, cortex (cortical control preventing amydalal from ….?)
Output flow is ?»>
connectin amydala to ……….. for ……….
and ………. for……..
Tha amydala is invovled in fear conditioning

Answer 16

Sympathatic- figh and flight
_______________________
Brainstem
Frontal and Tempral
Hijacking the brain
_____________________
Stria Terminalis
septal areas for inhibtio
Hypothalmus for visceral expression of unpleasent emotions

Question 17

Removal of temporal lobe in monkeys leading to ?
symptoms mention

Answer 17

Kluver bucky sundrome
____________-
Docility
Hyperphagia
hyper sexulaity
Memory affection
_________________
isolated removal like in Uncontrolled agressive behavior casuse the symptoms without memory affection

Question 18

the role of septal nuceli

Answer 18

stimualtion of septal nuclei casuing orgasm like sensation

Question 19

Septal connections

Answer 19

Septal areas connected:3H connections
!
1-and amygdloid with hypothalamus via medial longitudianl bundles
2-Hebanular nuclei via Stria medullaris thalami or Habenular stria
3-hippocampus through forinx

Question 20

Lesion to septal areas casues?

Answer 20

septal rage

Question 21

أوليس الله بأعلم بالشاكرين