Template:Hearing Embryonic Origins table1: Difference between revisions

Latest revision as of 07:25, 16 October 2018

**Adult Hearing - Embryonic Origins**
Outer Ear	Middle Ear	Inner Ear
Auricle - pharyngeal arch 1 and 2 (ectoderm, mesoderm) External Auditory Meatus - Pharyngeal Arch 1 groove or cleft (ectoderm) Tympanic Membrane - Pharyngeal Arch 1 membrane (ectoderm, mesoderm, endoderm)	Middle Ear Ossicles Malleus and incus - Pharyngeal Arch 1 cartilage Neural crest (ectoderm) Stapes - Pharyngeal Arch 2 cartilage Neural crest (ectoderm) Middle Ear Muscles Tensor tympani - Pharyngeal Arch 1 (mesoderm) Stapedius - Pharyngeal Arch 2 (mesoderm) Middle ear cavity - Pharyngeal Arch 1 pouch (endoderm)	Inner Ear Labyrinth Cochlea - Otic vesicle - Otic placode (ectoderm) Semicircular canals - Otic vesicle - Otic placode (ectoderm) Saccule and utricle - Otic vesicle - Otic placode (ectoderm) Cranial Nerve VIII Auditory component - Otic vesicle and neural crest (ectoderm) Vestibular component - Otic vesicle and neural crest (ectoderm)

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-* Auricle - Pharyngeal Arches 1 and 2 ({{ectoderm}}, {{mesoderm}})
+* Auricle - {{Pharyngeal arch}} 1 and 2 ({{ectoderm}}, {{mesoderm}})
 * External Auditory Meatus - Pharyngeal Arch 1 groove or cleft (ectoderm)
 * Tympanic Membrane - Pharyngeal Arch 1 membrane ({{ectoderm}}, {{mesoderm}}, {{endoderm}})