Pharyngeal groove
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| Pharyngeal groove | ||
|---|---|---|
 | ||
| Pattern of the branchial arches. I-IV branchial arches, 1-4 branchial pouches (inside) and/or pharyngeal grooves (outside) a Tuberculum laterale b Tuberculum impar c Foramen cecum d Ductus thyreoglossus e Sinus cervicalis | ||
| Gray's | subject #13 65 | |
| Dorlands/Elsevier | g_12/12402747 | |
A pharyngeal groove (or cleft) is the counterpart of the branchial pouch on the ectodermal side.
The first pharyngeal groove produces the ear canal.[1]
References
External links
- Pharyngeal+groove at eMedicine Dictionary
- http://isc.temple.edu/marino/embryology/parch98/parch_text.htm
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 |
