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Atlas of Human Embryos Chapter   Figure

ectodermal stalk, middle cerebral plexus, otocoele, otocyst, posterior cerebral plexus, rhombencephalon (hindbrain), rhombocoele

A section through the thicker, dorsal part of the rhombencephalon and the dorsal part of the otocyst.

Observe:
1. The otocyst that will become the membranous labyrinth of the internal ear is still connected to the ectoderm.
2. The close relation of the venous plexuses to the brain.


Keywords: ectodermal stalk, middle cerebral plexus, otocoele, otocyst, posterior cerebral plexus, rhombencephalon (hindbrain), rhombocoele

Source: Atlas of Human Embryos.