neuroanatomy 1

Question 1

are neurons exitable cells

Answer 1

yes

Question 2

what is the funciton of neurons

Answer 2

carry impulses though action potentials

Question 3

what are gilial cells

Answer 3

supporting cells, that are nuch smlaler than neruons

Question 4

is there more dendries or axons

Answer 4

dendrites

Question 5

what are the types of nurons

Answer 5

multipolar, bi polar, pseuodpolar

Question 6

where are mulitpolar found

Answer 6

interneuorns and motor neurons

Question 7

where are pseudounipolar neurons found

Answer 7

sensory

Question 8

where are bi polar neurons found

Answer 8

olfactory mucosa and retinal nerve fibers

Question 9

what is the function of the myelin sheaf

Answer 9

incresae speed of condution in axons

Question 10

what forms the myelated sheaf in pns and cns

Answer 10

schwann celsl in pns
oligodendrocytes in cns

Question 11

what is difference between white and grey mater

Answer 11

white mater is myelinated axons
grey mater is nneuroal cell bodies

Question 12

what are salteis cel in the pns

Answer 12

they surround nerual cel bodies adn act as suppory

Question 13

what are ependymal cells in the cns

Answer 13

act as line venticles ie.e incontact with csf and help to form bbb

Question 14

funciton of microgilia

Answer 14

phagocytois
scar tissue formation

Question 15

fucniton of astrocytes

Answer 15

surround synapes and cpapies helping to k+ buffering

Question 16

how is bbb formed

Answer 16

endothelilum - with tight juncitons
astorcutes - acts as support network for endothelium
thick basla lamina

Question 17

what cannot pas though blood brain barrier

Answer 17

harmul amion acids and ions

Question 18

what can pas though bbb

Answer 18

water soluble molvues e.g
lipid soluble drugs
glucose and certain amion acids

Question 19

funciton of cerebellem

Answer 19

balca and corodiation

Question 20

functoin of cerebum

Answer 20

concinous

Question 21

fucniton of brain stem

Answer 21

cardio resparoi centres

Question 22

what connects lateral vencies to 3rd venticles

Answer 22

intreventiclar foramen

Question 23

wher is teh the cerbal aquedcut

Answer 23

in the mid brain

Question 24

where is teh 4th venticle

Answer 24

hind brin

Question 25

where is teh 3rd venticles

Answer 25

diencaphalono

Question 26

is pia mater vasculaised

Answer 26

yes