Forth ventricle 1- Floor (rhomboid fossa ) 2- Roof 3- Borders

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Forth ventricle

1- Floor (rhomboid fossa ) 2- Roof 3- Borders

Floor of fourth ventricle

1- Median sulcus. calamus scriptorius 2- Medial eminence 3- Facial colliculus 4- Hypoglossal triangle 5- Vagal triangle 6-Funiculus separans 7- Area postrema 8- Sulcus limitance 9-Sup. and inf. fovea 10-Locus ceruleus/ substantia ferrugina 11- Vestibular area 12- Acoustic tubercle

Funiculus separans(32)

Circumoventricular organs

Roof of Forth ventricle

1- superior medullary velum 2- inferior medullary velum

superior medullary velum

inferior medullary velum

superior medullary velum

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