Ventricles Flashcards

1
Q

Borders of the ant.horn of lat.ventricle

A

Lat.: head of caudate nucleus
Med.: septum pellucidum
Floor,Ant., Roof: radiation of corpus callosum (rostrum&Genu&body)

Situated anterior to the interventricular foramen of Monro

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2
Q

Central part of Lat. ventricle

A

Posteriorly from interventricular foramen, at the level of splenium of corpus callosum

Roof: corpus callosum
Floor: dorsal thalamus, covered by Lamina affixa.
Lat.: body of caudate nucleus
Med.: choroid Lamina epithelialis of Lat. ventricle

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3
Q

Posterior horn of Lateral ventricle

A

Lat. wall: tapetum of corpus callosum
Other: occipital white matter

  • medial wall: 2 longitudinal elevations—> bulb of post.horn by forceps major & calcar avis
  • on the floor the collateral trigone is found
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4
Q

Inferior horn of Lateral ventricle

A

Floor: hippocampus and collateral eminence
Roof&lat.wall : tapetum, Stria terminalis and tail of caudate nucleus
Anterior: amygdaloid nucleus bulges into the anterior end of the horn.
Med.wall: choroid lamina epithelialis

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5
Q

3rd ventricle

A

Located in the midline ventricle cleft of diencephalon
Lat. wall: thalamus,hypothalamic sulcus and hypothalamus

Roof: choroid lamina epithelialis + tenia thalami + Habenular commissure

Floor: hypothalamus, optic chiasm, infundibulum, mamillary bodies, subthalamus

Ant.wall: ant.commissure, columns of fornix, lamina terminalis

Post.: habenular commissure, post.commissure

Openings:
2 interventricular foramina- laterally
Cerebral aqueduct- posteriorly

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6
Q

4th ventricle

A

Roof (tent shape):
sup.medullary velum, inf.medullary velum, nodule of cerebellum, choroid lamina epithelialis of 4th vent.

Floor (rhombus shape—> rhomboid fossa):
Stria medullares, facial colliculus, locus ceruleus, vestibular area, hypoglossal trigone, vagal trigone, area postrema

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