Nasal placode

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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 As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

v • d • e Prenatal development/Mammalian development of respiratory system (overview) Upper Nasal placode Lower Laryngotracheal groove - Lung buds

v • d • e Human development of head and neck Branchial region Pharyngeal arch (1st, 2nd) - Pharyngeal pouch - Pharyngeal groove - Cervical sinus Frontonasal prominence - Maxillary prominence - Mandibular prominence (Meckel's cartilage) tongue: Lateral lingual swelling - Tuberculum impar nose: Nasal placode - Olfactory pit - nasal prominences (Lateral, Medial) - Intermaxillary segment palate: Primitive palate - Secondary palate Tooth development Dental papilla - Odontoblast - Ameloblast - Hertwig's epithelial root sheath - Epithelial cell rests of Malassez - Cementoblast Thyroid Thyroid diverticulum - Thyroglossal duct - Ultimobranchial body