Ventricles

Question 1

True or False. There is NO CHOROID PLEXUS in the anterior and posterior horns of lateral ventricles

Answer 1

True

Question 2

Provides PROTECTIVE cushioning for the brain and NUTRITION

Answer 2

CSF

Question 4

Largest of the ventricles

Answer 4

Lateral ventricles

Question 5

Ventricular system is composed of ____ lateral ventricles, third ventricle, fourth ventricle and cerebral aqueduct.

Answer 5

2

Question 6

Attachment of the plexus to the adjacent brain structures

Answer 6

Tela choroidea

Question 7

Elevation of the ventricular wall produced by the calcarine fissure

Answer 7

Calcar avis

Question 10

Long narrow portion of lateral ventricle that extends from interventricular foramen to a point opposite the SPLENIUM of corpus callosum

Answer 10

Body of lat. ventricle

Question 11

Borders of FORAMEN OF MONRO:

• Anterior nucleus of thalamus
• Septum pellucidum
• Fornix
• Thalamostriate vein

Answer 11

Contains CHOROID PLEXUS

Question 12

Boundaries of body:
A. Floor: Thalamus
B. Lateral: BODY of caudate
C. Medial: Septum pellucidum
D. Roof: corpus callosum
E. All are paired correctly

Answer 12

E

Roof: CORPUS CALLOSUM
Medial: posterior part of SEPTUM PELLUCIDUM
Lateral: BODY of caudate
Floor: (medial to lateral)
     Fornix
     Choroid plexus
     THALAMUS
     Stria terminalis
     Vena terminalis
     Caudate nucleus

Question 13

Continuous fluid-filled system

Answer 13

Ventricular system

Question 14

Occupies midline of the diencephalon

Answer 14

Third ventricle

Question 15

Contains abundant tuft of choroid plexus which is continuous with choroid plexus of body and temporal horn.

Answer 15

Atrium/trigone

Question 16

Passageway between each lateral ventricle and the 3rd ventricle

Answer 16

Foramen of Monro

Question 17

Fringe-like vascular process of PIA MATER containing capillaries of the choroid arteries

Answer 17

Choroid plexus

Question 18

Boundaries of third ventricle:
A. Lateral: Bilaterally bordered by THALAMUS and HYPOTHALAMUS
B. Posterior: lamina terminalis, posterior commisure
C. Anterior: lamina terminalis, anterior commisure

Answer 18

B. Posterior: SUPRAPENIAL and PINEAL recesses, posterior commissure

Lateral: bilaterally bordered by THALAMUS and HYPOTHALAMUS
Anterior: LAMINA TERMINALIS, ant. commisure, OPTIC recess
Roof: Tela choroidea - contains choroid plexus and internal cerebral vein
Posterior: SUPRAPINEAL and PINEAL recesses, post. commisure

Question 19

Communicating system of cavities that are lined with _____________.

Answer 19

Ventricular system; ependyma

Question 21

Wide area of the body that connects the posterior and inferior horns

Answer 21

Atrium

Question 23

A large extension of the third ventricle above the EPITHALAMUS
A. Suprapineal recess
B. Infundibular recess
C. Pineal recess

Answer 23

A

Question 24

Third ventricle has thin membranous roof, ________________, containing choroid plexus

Answer 24

Tela choroidea

Question 25

T or F. Aqueduct of sylvius is located within the pons.

Answer 25

F. Within the MIDBRAIN

Question 26

4th ventricle extends under the ________ into the CENTRAL CANAL of MEDULLA

Answer 26

Obex

Question 29

Narrowest part of the ventricular system with NO CHOROID PLEXUS

Answer 29

Aqueduct of Sylvius

Question 30

Connects 3rd and 4th ventricles

Answer 30

Aqueduct of Sylvius

Question 31

Extends into the occipital lobe

Answer 31

Inferior/Temporal horn

Question 32

These aperture empties into the SUBARACHNOID SPACE at the origins of CN IX and X

Answer 32

FORAMEN OF LUSCHKA

Question 33

Pyramid shaped cavity bounded ventrally by the pons and medulla

Answer 33

4th ventricle

Question 34

``` Boundaries of inferior/temporal horn: A. Roof: Corpus callosum B. Medial: HEAD of the caudate nucleus and HIPPOCAMPUS C. All are paired correctly D. All are not paired correctly ```

Answer 34

B. Medial: TAIL of caudate nucleus and HIPPOCAMPUS

Question 35

True or False. 4th ventricle communicates freely with subarachnoid space through two apertures: foramen of MONRO and LUSCHKA

Answer 35

False. Three apertures: (2) MAGENDIE (1) LUSCHKA

Question 36

Median aperture of MAGENDIE empties into the ___________, anterior extension of the CISTERNA MAGNA

Answer 36

Valleculla

Question 37

True or False. Choroid plexus of 4th ventricle is attached to the INFERIOR medullary velum and extends laterally to the LATERAL apertures of MONRO

Answer 37

False. Lateral apertures of LUSCHKA

Question 38

Trace the CSF circulation

Answer 38

``` Lateral ventricles foramen of Monro Third ventricle Cerebral aqueduct of Sylvius Fourth ventricle foramen of Luschka foramen of Magendie Subarachnoid space Arachnoid villi Superior sagittal sinus ```

Question 39

Choroid plexus extends from the _____________ where it joins with plexuses of the third ventricle and opposite lateral ventricle, to the end of inferior horn

Answer 39

Interventricular foramen of Monro

Question 40

True or False. 4th ventricle has an incomplete roof which is formed by the ANTERIOR and POSTERIOR medullary vela.

Answer 40

True

Question 41

True or False. Total volume of CSF renewed 4 times in a day

Answer 41

False. Only 3 times a day

Question 42

Funnel shape downward extension where HYPOPHYSIS is attached. A. Optic recess B. Infundibular recess C. Pinael recess

Answer 42

B

Question 43

Choroid epithelium has ____________ A. Gap junction B. Desmosome C. Tight junction

Answer 43

C

Question 44

True or False. CSF has lqow cellular and high protein content.

Answer 44

False. Low cellular and protein content

Question 45

Boundaries of posterior horn: A. Roof: CORPUS CALLOSUM B. Medial: CALCAR AVIS C. All are paired correctly

Answer 45

C

Question 46

``` Extensions of the third ventricle between the lamina terminalis and optic chiasm A. Infundibular recess B. suprapineal recess C. Pineal recess D. Optic recess ```

Answer 46

D

Question 47

Point at which the 4th ventricle passes up into the cerebellum is called ____________

Answer 47

Apex/Fastigium

Question 48

The floor of 4th ventricle is also known as _____________

Answer 48

Rhomboid fossa

Question 49

In front of the interventricular foramen

Answer 49

Anterior/frontal horn

Question 52

``` Boundaries of anterior horn: A. Medial: head of nucleus B. Floor: rostrum of corpus callosum C. Lateral: head of caudate nucleus D. Roof and anterior border: corpus callosum ```

Answer 52

A. Medial: SEPTUM PELLUCIDUM, fornix and genu of corpus callosum Lateral: HEAD of caudate Floor: ROSTRUM of corpus callosum

Question 53

Boundaries of FOURTH VENTRICLE A. Roof: inferior cerebellar vela B. Floor: pons and medulla C. Lateral: 3 cerebellar peduncles

Answer 53

A. Roof: SUPERIOR and INFERIOR medullary vela, SUPERIOR cerebellar peduncle Floor: pons and medulla Lateral: 3 cerebellar peduncles