nueroanatomy

Question 1

glial cells of CNS

Answer 1

oligodendrocytes 
astrocytes 
mcroglia 
ependymal cells 
radial glia

Question 2

glial cells of PNS

Answer 2

neurolemmocytes (schwann) cells
satellite cells
enteric glia cellls

Question 3

grey matter

Answer 3

cell bodies, soma
surface of cerebral hemisphere
brrainstem nuclei
centre of the spinal cord

Question 4

white matter

Answer 4

cell processes, axons (myelinated)
corpus callosum
internal capsule

Question 5

the skull

Answer 5

anterior cranial fossa - frontal lobes
middle cranial fossa - temporal lobes
posterior cranial fossa - brainstem and cerebellum

Question 6

foramen magnum

Answer 6

medulla becomes spinal cord

other foramen oresent for cranial nerves

Question 7

cranial meninges

Answer 7

hold and protect CNS

Question 8

dura mater

Answer 8

tough, fibrous membranes

falx cerebri, tentorium cerebelli - that adheres to the skull, contains folds which seperate the lobes of the brain

Question 9

arachnoid mater

Answer 9

soft, translucent, full of veins

Question 10

tentorium cerebelli

Answer 10

divides cerebrum from cerebellum

Question 11

subarachnoid space

Answer 11

contains cerebral spinal fluid produced from the choroid plexus

Question 12

pia mater

Answer 12

microscopically small and highly vascular

against the brain

Question 13

falx cerebri

Answer 13

devides cerebral hemispheres

Question 14

superficial veins

Answer 14

in subarachnoid space

Question 15

deep veins

Answer 15

drain the internal structures of the forebrain

Question 16

the ventricular system

Answer 16

a set of interconnected spaces/cavities that circulate cerebrospinal fluid

Question 17

CSF is made by

Answer 17

choroid plexus

Question 18

choroid plexus is found in

Answer 18

lateral, 3rd and 4th ventricles

Question 19

CSF flow pathway

Answer 19

chorooid plexus > lateral ventricle > intravenricular formane > 3rd venrticle > cerebral aqeduct > 4th ventricle > CSF leaves via 2 lateral and 1 median aperture of 4th ventricle and enter subarachnoid space

Question 20

hydrocephalus

Answer 20

an obstruction of CSF within the ventricular system

• communicating (nonobstructive) impaired csf reabsorption w/o obstruction of CSF flow betweeen the ventricles and subarachnoid space
• non communicating (obstructuve) obstruction of CSF

Question 21

2 types of hydrocephalus

Answer 21

communicating and non communicating

Question 22

non communicating hydrocephalus

Answer 22

obstructive obstruction off CSF

chiari malformation - downward displacement of cerebellum through foramen magnum

Question 23

brain is supplied by 2 pairs of vessels

Answer 23

internal carotid arteries and vertebral arteries

Question 24

carotid arteries

Answer 24

give rise to many branches

terminate into the anterior and middle cerebral arteries

Question 25

vertebral arteries converge at

Answer 25

the medulla/pons to create the basiillar artery

Question 26

the basillar artery

Answer 26

gives rise to several arteries before it terminates into the superior cerebellar arteries and posterior cerebral arteries

Question 27

cerebral aterial circle also called

Answer 27

circle of willis