pre-lab questions

Question 1

the brain and spinal cord are covered by three separate membranes called ________.

Answer 1

meninges

Question 2

which of the following is one of the two partitions that are made of fused dural layers?

Answer 2

tentorium of the cerebellum

Question 3

this part of the meninges lies just below the dura

Answer 3

arachnoid mater

Question 4

how many cranial nerves are there?

Answer 4

12

Question 5

how many cranial nerves mediate motor behaviors?

Answer 5

5

Question 6

which cranial fossa contains the opening through which the brain and spinal cord are continuous with each other?

Answer 6

posterior

Question 7

which cranial nerve gains access to the CNS through the cribiform plate?

Answer 7

cranial nerve 1

Question 8

what is the name of the large sinus that runs along the midline?

Answer 8

superior sagittal sinus

Question 9

how many nerves exit via the superior orbital fissure?

Answer 9

4

Question 10

which cranial fossa contains the opening through which the brain and spinal cord are continuous?

Answer 10

posterior

Question 11

the right and left vertebral arteries join ton form which artery?

Answer 11

basilar artery

Question 12

in humans, this structure clearly separates the temporal lobe from the frontal and parietal lobes

Answer 12

Sylvian fissure

Question 13

to find the boundary of the frontal lobe you first find which sulcus?

Answer 13

superior frontal sulcus

Question 14

in the human, the basilar artery bifurcates into which artery?

Answer 14

posterior cerebellar artery

Question 15

the basilar artery lies at the base of which structure?

Answer 15

pons

Question 16

in the sheep, the superior frontal sulcus terminates into which structure?

Answer 16

crucial sulcus

Question 17

when you lift the hippocampus, what underlying structure do you expose?

Answer 17

thalamus

Question 18

the space between the cerebellum and the brainstem is called what?

Answer 18

fourth ventricle

Question 19

what structure “kneels” on the anterior commissure?

Answer 19

columns of the fornix

Question 20

when you open the interhemispheric fissure you can see what structure?

Answer 20

corpus callosum

Question 21

the brainstem contains several collections of cell bodies called what?

Answer 21

cranial nerve nuclei

Question 22

CSF flows from the ventricle into the subarachnoid space through which structure?

Answer 22

foramen of magendie

Question 23

where is the third ventricle located?

Answer 23

between the thalamus and the hypothalamus

Question 24

which commissure interconnects the olfactory structures and regions of the middle and inferior temporal gyrus?

Answer 24

anterior commissure

Question 25

which part of the ventricular system connects after the third or fourth ventricles?

Answer 25

cerebral aqueduct

Question 26

you will know if you make the perfect midline sagittal cut if this structure is left completely intact in both hemispheres

Answer 26

septum pellucidum

Question 27

which peduncle connects the cerebellum to the pons?

Answer 27

middle cerebellar peduncle

Question 28

which of these is the most extensive projection fiber tract connecting the cortex to the cerebellum, brainstem, and spinal cord?

Answer 28

internal capsule

Question 29

each ventricle contains a vascular structure known as what ?

Answer 29

choroid plexus

Question 30

this cerebellar structure receives somatosensory information from the spinal cord and sends its outputs via the fastigial nucleus to the vestibular and motor nuclei in the reticular formation

Answer 30

vermis

Question 31

what kind of stain is used for the histology lab?

Answer 31

mulligan stain

Question 32

which of these chemicals is not in solution A ? 1) bromine 2)phenol 3) copper sulfate 4)HCl

Answer 32

bromine

Question 33

how long do you submerge your slices in solution A ?

Answer 33

1-5 minutes

Question 34

after submerging your slices in solution A, what solution do you place the slices next?

Answer 34

dH2O

Question 35

how long do you place your sections on the tannic acid?

Answer 35

1 minute

Question 36

what color should the gray matter become after staining?

Answer 36

black

Question 37

the gray matter should change color after submerging the slices in which of the following?

Answer 37

iron alum

Question 38

what solution do you put the slices in after the tannic acid?

Answer 38

dH2O

Question 39

after the final dH2O rinse, where should you place your slices so that you can observe the results of the staining?

Answer 39

dissection tray

Question 40

when you are finished for the day, which of the following do you use to preserve the stain and keep the sides from dehydrating while stored?

Answer 40

dH2O