65, 66

Question 1

external features of telencephalon

Answer 1

pallium=external part covering the rhinencephalon(olfactation) and the basal gangleon on the inside of rhinencephalon

cerebral gyri separated by cerebral sulcus - juga cerebralis on top?

fissura longitudinalis btw hemispheres
fissura transversa sep cerebrum from cerebellum

Question 2

fissura sylvi

Answer 2

in middle of neopallium, sorrunding it is firstly the sulcus ectosylvius, and then sulcus suprasylvius

along the fissura sylvi we find the sulcus rhinalis lateralis, with a rostral and caudal part, rostr and caud to fissura sylvi

dorsally in neopallium there is sulcus marginalis (longitudinal) - and sulcus cruciatus going the the ext - outside of brain

Question 3

RHINENCEPHALON 3 parts

Answer 3

pars:
basalis
septalis
limbicalis

olfactory part of telencephalon

Question 4

pars basalis of rhinencephalon

Answer 4

rostrally, we see the olfactory bulb with filum, and peduncles connecting the bulb to the hemispheres through tractus olfactorius L/M/I. caud to the pedncle is the lobus piriformis

Question 5

the 3 tracts of the peduncle of pars basalis rhinencephalon

Answer 5

tractus olf med -> subcalosus+area precommissura(p. septalis)
tractus olf intermed -> trigonum olf (endpoint)
tractus olf lat -> lobus piriformis, containing amygdala (endpoint) connecting basal to limbic system

Question 6

pars septalis rhinencephalon

Answer 6

located medially btw the hemispheres: septum pellicidum, area subcallosa, callosum

contain commissural fibers for communications

Question 7

corpus callosum pars septalis

Answer 7

in fissura longitudinalis - form communication btw L&R hemispheres; forceps minor to the frontal lobe
forceps major to the occipital lobe

Question 8

pars limbica rhinencephalon

Answer 8

consists of fornix and hippocampus -> process emotional input(afferent)

Question 9

fornix of p. limbica

Answer 9

c- shaped in contact with lateral ventricle and the cerebral hemispheres
connect mammary body of hypothalamus to hippocampus of limbic system

WHITE MATTER

Question 10

fornix connection to mammari body

Answer 10

connect corpus mamm. by tractus mammilo thalamicus to the fornix

also columna fornicis from corpus which sorrund for. interventr. and then run to wall of IIIrd ventricle to corpus mamm

Question 11

fornix connection to hippocampus

Answer 11

connect hippocampus by crus fornicis (paired) later fuce to form corpus fornicis

inside the hippocampus we find white fibers: fimbrae hippocampi

Question 12

what it the basal ganglia and what does it consist of

Answer 12

aka corpus striatum, part of the extrapyrimidal center
consist of
- nucl caudatus
- nucl lentiformis (lat=putamen, med=pallidum)
- thalamus (diencephalon)
- subst. nigra (midbrain)

Question 13

path of the basal ganglia

Answer 13

recieve info from primary motor cortex -> nucl caudatus+lentiformis -> capsula interna(white) -> ventral to cerebral peduncle/crus cerebri -> tr. pyrimidis

Question 14

we find the corpus striatum where

Answer 14

medial to the insula of fissura syvia - with lat->med

- capsula extrema(white), claustrum(grey), and then the capsula externa(white) btw the fissura and putamen

Question 15

what is the capsula interna and its function

Answer 15

the fibers encapsulate the basal nuclei and the thalamus

and its fibers run to and from the brain stem = carries the MOST important afferent and efferent pathways