Cns 1

Front 1

Telencephalon

Back 1

-Cerebrum; the adult forebrain
-two cerebral hemispheres

Front 2

Corpus Callosum

Back 2

-a gigantic fiber bundle of axons connecting the two cerebral hemispheres.
-allows communication between each side.
-obviously white matter

Front 3

cerebral cortex

Back 3

superficial layer of the brain; gray matter (nerve cells) surrounding white matter.

Front 4

Forebrain

Back 4

Prosencephalon (Telencephalon in adult)
and Diencephalon.

Front 5

cerebral cortex

Back 5

superficial layer of the brain; gray matter (nerve cells) surrounding white matter.

Front 6

Functions of the Cerebrum

Back 6

-All intellectual functions;
-Conscious thought processes;
-Memory storage/processing;
-Skeletal muscle contraction regulation.

Front 7

gyri, sulci, fissures

Back 7

elevated ridges, shallow depressions, and deeper grooves (respectively) that provide increased surface area on the cerebral hemispheres for additional cortical neurons.

Front 8

longitudinal fissure

Back 8

seperates the two cerebral hemispheres;

Front 9

lateral sulcus

Back 9

inferior border of frontal lobe; superior border of temporal lobe. extends from central sulcus (middle of head) anteriorly toward face.

Front 10

insular lobe

Back 10

island of cortex, deep to the temporal lobe. inferior to frontal lobe.

Front 11

parieto-occipital sulcus

Back 11

transverse across back of head, divides the parietal lobe from occipital lobe.

Front 12

Major sulci or fissures

Back 12

central sulcus
lateral fissure
parieto-occipital sulcus
calcarine fissure

Front 13

major gyri

Back 13

precentral
postcentral
temporal
cigulate
parahippocampal

Front 14

central sulcus

Back 14

extends lateraly from longitudinal fissure; seperates frontal lobe from parietal lobe (or precentral gyrus from postcentral gyrus; also could be said, seperates motor and sensory portions of the cerebral cortex.

Front 15

precentral gyrus

Back 15

-primary motor cortex (surface);
-neurons are pyramidal cells
-direct voluntary movements of body via control of somatic motor neurons in brain stem/spinal cord.

Front 16

corticospinal pathyway

Back 16

pyramidal system; pathway that provides voluntary motor control.

Front 17

postcentral gyrus

Back 17

primary sensory cortex of cerebral cortex.
-recieve somatic sensory info from the 5 sense receptors; provides continuous awareness of these senses. (collaterals deliver info for to basal nuclei, etc.)