VENTRICLES OF BRAIN
VENTRICLES OF BRAIN
- There are four cavities within brain called cerebral
ventricles
- Ventricles 1st & 2nd are called as
paracoels or lateral ventricles located in cerebral hemisphere
- Anteriorly, the lateral ventricles are separated by a thin
membrane , the septum pellucidum
- Venticles 3rd is a narrow cavity known as diocoel
at the midline above hypothalamus & between the right and left halves of
the thalamus
- Ventricles 4th , the metacoel , lies between the
brain stem & the cerebellum
- Foramen of Monro connects lateral ventricles with diocoel
- Cavity of midbrain called iter or cerebral aqueduct
communicates diocoel with fourth ventricles or metacoel
- Paired Foramina of luschka are present on the lateral Wall
of metacoel
- Paired Formina of luschka are present on the lateral wall of
metacoel
- Foramen of megendie and foramina of luschka “Three holes”
permit cerebrospinal fluid to flow out into the subarachnoid space from
metacoel
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