basal ganglia , thalamus and the limbic system

Question 1

the basal nuceli is located what to the thalmus

Answer 1

lateral

Question 2

the masses of the basal nuclei

Answer 2

corpus striatum : caudate and lentiform
lentiform: globus pallidus, putamen
amygdaloid nucels , claustrum

Question 3

the corpus striatum is divided by the

Answer 3

internal capsule : lentiform and caudate

Question 4

caudate nucleus description

Answer 4

large c shaped nucleus of gray matter
conisists of head body and a tail

Question 5

lentiform nucleus

Answer 5

gray matter buried deep within the white matter of the cerebral hemispeheres
putamen nucleus: darker lateral portion
globus pallidus inner lighter portion

Question 6

functions of basal ganglia

Answer 6

assisst in the regulation of volunatray motor movement and in learning motor skills
control complex patterns of movemnt

Question 7

parkinsonism disease

Answer 7

degeneration of dopamine producing cells , substania n depletion of dopamine in the striatum

Question 8

symptoms of parkinsons disease

Answer 8

hypokinetic, brady kineasia, hypertonia, slurred speech, mask like face, rigdity, resting tremor, postural distrubance , no loss of sensory or motor function

Question 9

huntingtons disease

Answer 9

hereditary disease
due to teh degeneration of the caudate and the putamen nucelus , produces dance liek movements of the face and limbs - choreoathetosis

Question 10

signs and symptoms of huntingtons disease

Answer 10

progressiev dementia: lossof memory and intellectual capacity
choreiform movements

Question 11

computed tomography scans show what about the huntingtins diseade

Answer 11

shpw enlarged lateral ventricles due to the degeneration of the caudate nuclei

Question 12

the diencepholon divisions

Answer 12

epi, hypo,sub and thalamus

Question 13

thalmus

Answer 13

large ovoid grey matetr of nuclei
has many nuceli
forms most of the diencepholon

Question 14

medial geniculate

Answer 14

fporms part of the audiotory pathway

Question 15

lateral geniculate

Answer 15

forms part of the visual pathway ( visual info from the pposite field of vision)

Question 16

thalmus fucntion

Answer 16

acts as a relay and integretive center
relays info to all part s of he cerebral cortex, basal ganglia, andhypothalmus and braibnstem

Question 17

hypothalmus is located

Answer 17

under teh thalmus

Question 18

the hypothalmus ia apart of what system

Answer 18

the limbic system

Question 19

what gland is attached to the hypothalmus

Answer 19

pituatry

Question 20

the hypothalmus is imprtant center for what nervous system

Answer 20

ans

Question 21

hypothalmus function

Answer 21

control water balance, regulate body temp and metabolisim

Question 22

the epithalmus consists of the

Answer 22

pineal gland and hebenular nuclei

Question 23

the pineal gland descriptuon

Answer 23

the size of a small pea
secretes melatonin

Question 24

habenular nuclei function

Answer 24

ionvolved in olfaction
emotional responses to odors

Question 25

the structures involved in teh limbic system

Answer 25

amygdala , hippocampus, thalmus, hypo thalamus, basal gamglia, cingulate gyrud

Question 26

function of the limbic system

Answer 26

involved in behaviourala nd emotiobnal responses especially ones where we need for survival like feeding memory fighting

Question 27

functiosn of teh limbic system 2

Answer 27

instict ( hypothalmus) memory ( hippocampus) emotions ( amygdala hippo, prefrontal cortex, septal areas

Question 28

lesion to the hippocampus results in

Answer 28

anterograde amneisa someoen is unale to form long term memory but memory befrie teh acciddent is unafected

Question 29

what area will be damaged first with alzheimers disease

Answer 29

hippocampus

Question 30

meninges

Answer 30

dura pia archanoid

Question 31

dura matter description

Answer 31

double layered ecternal covering periosteum: attached to teh surface of teh skull meningeal layer : outer covering of the brain( corresponds psinal dura matter)

Question 32

two lateral ventricles location

Answer 32

one in each cerebral hemishperes

Question 33

third ventricle location

Answer 33

narrow slit like cavity located between teh right and left halves of teh thalmus

Question 34

fourth ventricle location

Answer 34

between the brainstem and cerebellum

Question 35

interventricular formina location

Answer 35

opening between tehtwo laterla ventrciles and teh third ventricle

Question 36

cerebral aqueduct

Answer 36

the csf passes from the third ventircle through the midbrain to thefourth ventricle

Question 37

how does tehcsf get ibnto teh subarcahnoid space ??

Answer 37

csf reaches teh fourth ventricles and enters the subarachnoid space through three openings on teh roof of the fourth ventricle median aperture and paired lateral aperture

Question 38

csf is formed and secreted by the

Answer 38

choroid plexus ( a network of blood capillarees located in teh walls of each ventricle)