Otic placode

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Otic placode
Latin placoda otica
Code TE E5.15.2.0.0.0.4

In embryology, the otic placode is a thickening of the ectoderm on the outer surface of a developing embryo from which the ear develops. The ear, including both the vestibular system and the auditory system, develops from the otic placode beginning the third week of development. During the fourth week, the otic placode invaginates into the mesenchyme adjacent to the rhombencephalon to form the otic pit, which then pinches off from the surface ectoderm to form the otic vesicle.[1]

See also

  • placode

References

  1. ↑ http://download.videohelp.com/vitualis/med/Ear_Devt.html
Neurogenesis
General neural development/
neurulation/neurula
Neural crest
Neural tube
Eye development
Auditory development
note: NS is mostly ectoderm, but mesoderm is precursor for epineurium, perineurium, and endoneurium

M: CNS

anat (n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco (m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug (N1A/2AB/C/3/4/7A/B/C/D)

M: EYE

anat (g/a/p)/phys/devp/prot

noco/cong/tumr, epon

proc, drug (S1A/1E/1F/1L)

M: EAR

anat (e/p)/phys/devp

noco/cong, epon

proc, drug (S2)

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