Cerebral Hemisphere

Question 1

This is the deep midline sagittal fissure that separates the largest part of the brain

Answer 1

Longitudinal Cerebral Fissure

Question 2

These are folds that increase the surface area of the cerebral cortex maximally

Answer 2

Gyri

Question 3

These separated the folds of the cerebral cortex

Answer 3

Sulci or fissures

Question 4

The deep cleft found mainly on the inferior and lateral surfaces of the cerebral hemisphere.

Answer 4

Lateral sulcus

Sylvian Fissure

Question 5

An area of the cerebral cortex that lies at the bottom of the lateral sulcus and cannot be seen from the surface unless the lips of the sulcus are separated.

Answer 5

Insula

Island of Reil

Question 6

This sulcus begins on the superior medial margin of the hemisphere about 5 cm anterior to the occipital pole.

Answer 6

Parieto-occipital sulcus

Question 7

The parieto-occipital sulcus passes downward and anteriorly on the medial surface to meet the __________.

Answer 7

Calcarine sulcus

Question 8

The calcarine sulcus commences under which specific part of a certain commissure fiber?

Answer 8

Posterior end of the corpus callosum

Question 9

This lobe occupies the area anterior to the central sulcus and superior to the lateral sulcus.

Answer 9

Frontal lobe

Question 10

What is the gyrus that lies between the precentral sulcus and central sulcus

Answer 10

Precentral gyrus

Question 11

What are the 2 sulci that run anteriorly from the precentral sulcus?

Answer 11

Superior frontal sulcus

Inferior frontal sulcus

Question 12

The parietal lobe extends posteriorly as far as the _______ sulcus

Answer 12

Parieto-occipital sulcus

Question 13

The intraparietal sulcus commences from the middle of what sulcus to course posteriorly?
A. calcarine sulcus
B. precentral sulcus
C. postcentral sulcus
D. middle temporal sulcus

Answer 13

C. Postcentral sulcus

Question 14

What structures are situated superior and inferior to to intraparietal sulcus?

Answer 14

Superior parietal lobule

Inferior parietal lobule

Question 15

What lobe occupies the area inferior to the lateral sulcus?

Answer 15

Temporal lobe

Question 16

Which gyrus is continued onto the inferior surface of the hemisphere?

Answer 16

Inferior temporal gyrus

Question 17

The cingulate gyrus begins beneath the anterior end of the ________

Answer 17

Corpus callosum

Question 18

The cingulate gyrus is separated from the corpus callosum by the ________

Answer 18

Callosal sulcus

Question 19

The cingulate gyrus is separated from the _________ by the cingulate sulcus.

Answer 19

Superior frontal gyrus

Question 20

Which of the following parts of the cerebral cortex encompasses both frontal and parietal lobes?
A. paracentral lobule
B. inferior parietal lobule
C. occipitotemporal gyrus
D. superior parietal lobule

Answer 20

A

Question 21

An area of cortex bounded anteriorly by the upturned posterior end of the cingulate sulcus and posteriorly by the parieto-occipital sulcus.

Answer 21

Precuneus

Question 22

A triangular area of cortex bounded above by the parieto-occipital sulcus, inferiorly by the calcarine sulcus, and posteriorly by the superior medial margin.

Answer 22

Cuneus

Question 23

This sulcus is situated on the inferior surface of the hemisphere and courses anterior below the calcarine sulcus.

Answer 23

Collateral sulcus

Question 24

What gyrus is situated between the collateral sulcus and the calcarine sulcus

Answer 24

Lingual gyrus

Question 25

Anterior to the lingual gyrus is the __________ gyrus; the latter terminates in front as the hooklike _________

Answer 25

parahippocampal | uncus

Question 26

Which sulci serve as the medial boundaries of the medial occipitotemporal gyrus?

Answer 26

Collateral sulcus and | Rhinal sulcus

Question 27

The __________ gyrus lies lateral to the occipitotemporal sulcus and is continuous with the_________ gyrus.

Answer 27

lateral occipitotemporal; | inferior temporal

Question 28

What structures overlie the olfactory sulcus on the inferior surface of the frontal lobe

Answer 28

Olfactory bulb and tract

Question 29

``` The gyri lateral to the olfactory sulcus is which of the following? A. visual gyri B. orbital gyri C. auditory gyri D. olfactory gyri ```

Answer 29

B

Question 30

Give the commissural structures of the cerebrum

Answer 30

Corpus Callosum Anterior and posterior commissure Fornix Habenular commissure

Question 30

Give the commissural structures of the cerebrum

Answer 30

Corpus Callosum Anterior and posterior commissure Fornix Habenular commissure

Question 31

Parts of the corpus callosum

Answer 31

Rostrum Genu Body Splenium

Question 32

Traced laterally, the fibers of the genu curve forward into the frontal lobes and form the _______.

Answer 32

forceps minor

Question 33

The fibers of the body extend laterally as the ________ of the corpus callosum.

Answer 33

radiation

Question 34

``` The forceps major arises from which part of the corpus callosum? A. septum pellucidum B. splenium C. rostrum D. body ```

Answer 34

B

Question 35

These fibers connect various cortical regions within the same hemisphere

Answer 35

Association fibers

Question 36

These fibers course transversely to the long axis of the sulci and connect adjacent gyri immediately beneath the cortex

Answer 36

Short association fibers

Question 37

These are long association fibers which connects the occipital lobe to the temporal lobe.

Answer 37

Inferior longitudinal fasciculus

Question 38

Projection fibers are afferent and efferent nerve fibers passing to and from the ________ to the entire cerebral cortex that must travel between large nuclear masses of gray matter within the cerebral hemisphere.

Answer 38

Brainstem

Question 39

``` The internal capsule, projection fibers, superiorly becomes which of the following? A. superior longitudinal fasciculus B. inferior longitudinal fasciculus C. external capsule D. corona radiata ```

Answer 39

D