Sheep Brain Quiz #1

Front 1

possible views of an anatomical structure

Back 1

dorsal

Hint 1

a top view

Front 2

possible views of an anatomical structure

Back 2

ventral

Hint 2

underneath view

Front 3

possible views of an anatomical structure

Back 3

lateral

Hint 3

side view

Front 4

possible views of an anatomical structure

Back 4

medial

Hint 4

view from the midline
cut in half and look at the middle section

Front 5

possible views of an anatomical structure

Back 5

rostral

Hint 5

front view

Front 6

possible views of an anatomical structure

Back 6

caudal

Hint 6

rear view

Front 7

Brain stem is completely covered by what?

Back 7

cerebellum and cerebrum except for the caudal part of the medulla

Front 8

what does the cerebellum consists of?

Back 8

a medially placed vermis and two laterally placed hemispheres
called cerebeller vermis and cerebeller hemispheres

Front 9

what is the entire outer surface of the cerebellum consists of?

Back 9

It consists of cerebellar cortex which is folded up into a series of narrow ridges called folia

Front 10

cortex

Back 10

the skin of the brain; outer layer

Front 11

Cerebrum is divided into left and right halves called?

Back 11

cerebral hemispheres and divided by the medial longitudinal fissure

Front 12

cerebral cortex

Back 12

outer surface of cerebrum folded into a series of ridges

Front 13

ridges in cerebrum is called?

Back 13

gyri

Front 14

furrows that separate (between) the gyri is called?

Back 14

sulci or fissures

Front 15

Sulci

Back 15

filled with many small blood vessels and with the pia and arachnoid membranes

Front 16

If cerebral hemispheres are spread slightly and the blood vessels and pia are removed, what can be seen?

Back 16

Heavy bands of white fibres connecting the hemispheres called corpus callosum

Front 17

corpus callosum

Back 17

Heavy bands of white fibres connecting the hemispheres

Front 18

What are the four mounds that are exposed after we pick out the pia and blood vessels?

Back 18

The superior and inferior colliculi

Front 19

The superior and inferior colliculi

Back 19

The superior colliculi are much larger and better developed than the inferior colliculi.

Front 20

depths of the sulci can be seen if we pulled out the small blood vessels

Back 20

.

Front 21

White matter

Back 21

White matter owes its color to the presence of large numbers of myelinated nerve fibres

Front 22

myelinated

Back 22

a white tissue forming an insulating sheath ( myelin sheath ) around certain nerve fibres.

Front 23

sheath

Back 23

a case or covering like a condom

Front 24

grey matter

Back 24

grey matter consists of nerve cell bodies and fine unmyelinated fibres

Front 25

Cranial nerves

Back 25

trigeminal nerve and optic nerve

Front 26

Fissures and sulci of the cerebral cortex are quite variable from one species of animal to another

Back 26

.

Front 27

What fissure is present in nearly all mammals?

Back 27

the rhinal fissure

Front 28

the rhinal fissure

Back 28

the rhinal fissure is the dividing line between the pyriform lobe, located ventrally, and the neocortex which is the prominent furrowed type of cerebral cortex visible in dorso-lateral views of the brain

Front 29

Cerebral cortex as a whole includes the hippocampal formation and the medial strip of cortex lying immediately dorsal to the corpus callosum

Back 29

.

Front 30

Subdivisions of the cerebral cortex are developed to different degrees in different kinds of animals

Back 30

ex. something resembling the pyriform lobe can be reconized in various kinds of amphibia and such but none of these animals has a tissue that closely resembles the neocortex

Front 31

Animals that have neocortex

Back 31

Suggests that some of the differences in behavior between mammals and other animals may depend on the presence of the neocortex