Nasal placode
Gives rise to	olfactory epithelium

The nasal placode (or olfactory placode^[1]) gives rise to the olfactory epithelium of the nose.

The terms "nasal sac" or "nasal pit" are sometimes used to describe an intermediate structure arising between the placode and epithelium chronologically.

[edit] See also

• olfactory pit
• placode

[edit] References

1. ^ hednk-027 — Embryology at UNC

[edit] External links

• http://embryology.med.unsw.edu.au/Notes/week4_3.htm#nose
• http://www.ana.ed.ac.uk/database/humat/notes/embryo/sensory/nose.htm

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

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v • d • e Prenatal development/Mammalian development of respiratory system (overview) (GA 11.1071) Upper Nasal placode Lower Laryngotracheal groove · Lung buds respiratory system navs: anat nose,larynx/lower+thoracic cavity/physio/dev, noncongen/congen/tumors, symptoms+signs/eponymous, proc

v • d • e Human development of head and neck / branchial apparatus (GA 1.65) Nose Nasal placode · Olfactory pit · nasal prominences (Lateral, Medial) · Intermaxillary segment Mouth/neck Palate Primitive palate · Secondary palate 1st arch Frontonasal prominence · Maxillary prominence · Mandibular prominence (Meckel's cartilage) Anterior tongue: Lateral lingual swelling · Tuberculum impar Thyroid (pouches 3-5) Thyroid diverticulum · Thyroglossal duct · Ultimobranchial body General Pharyngeal groove (Cervical sinus) · Pharyngeal arch (1st, 2nd) · Pharyngeal pouch (Ultimobranchial body) respiratory system navs: anat nose,larynx/lower+thoracic cavity/physio/dev, noncongen/congen/tumors, symptoms+signs/eponymous, proc mouth navs: anat/dev, noncongen/congen face/congen GI/neoplasia, symptoms, proc endocrine navs: anat/physio/dev/hormones, noncongen/congen/neoplasia, symptoms+signs/eponymous, proc