Pharyngeal pouch (embryology) - Wikipedia
网页In the embryonic development of vertebrates, pharyngeal pouches form on the endodermal side between the pharyngeal arches. The pharyngeal grooves (or clefts) form the lateral ectodermal surface of the neck region to separate the …
Embryology, Pharyngeal Pouch - StatPearls - NCBI Bookshelf
网页2023年4月3日 — The first pharyngeal pouch is highly dominated by the expression of the TBX1 and eyes absent 1 (EYA1) and 4 (EYA4) genes. The TBX1 gene induces the development of the first pharyngeal pouch, forming the tympanic membrane. Mutations in the EYA4 and EYA1 genes cause partial conductive hearing loss.
The Pharyngeal Arches - Clefts - Pouches - TeachMeAnatomy
网页2024年2月11日 — The first pharyngeal arch is comprised of two parts: Maxillary prominence (dorsal portion) – becomes the future maxilla, zygomatic bone and part of the temporal bone. Is associated with the maxillary cartilage, which gives rise to the incus. Mandibular prominence (ventral portion) – becomes the future mandible.
Pharyngeal pouches, membranes and clefts - Kenhub
网页2023年10月30日 — Below is a list of the pharyngeal pouches in an order corresponding to the pharyngeal arches (directed craniocaudualy), including details about each individual pouches location, embryonic structure and adult structure: Pouch 1: the first pouch is located opposite the first pharyngeal cleft and is separated by the first pharyngeal membrane. Its ...
网页SUMMARY: The transient structures that are known as pharyngeal grooves and pharyngeal pouches disappear toward the end of the embryonic period. The first pharyngeal groove will give rise to the external auditory meatus of the adult ear. The other three grooves will disappear without having any further role in …
The pharyngeal pouches and clefts: Development, evolution, structure ...
网页2010年5月1日 — The pharyngeal pouches, and first arch cleft, form a number of diverse structures and glands that play essential roles in the body, allowing for hearing, immune responses, and calcium homeostasis. The exact derivatives of the second, third and more caudal pouches vary between different species indicating some flexibility with regard to …
Development and Evolution of the Pharyngeal Apparatus
网页The pouch (endoderm) gives rise to the tubotympanic recess, the epithelium of the tympanic cavity, and the Eustachian tube that links the nasopharynx to the middle ear. In addition, the first pharyngeal pouch also gives rise to the tympanus, which …
Embryology, Craniofacial Growth, And Development
网页2023年7月3日 — There are four pharyngeal pouches which are infoldings lined with endoderm between the pharyngeal pouches on the inside of the pharynx. The first pouch is destined to become the future auditory (or Eustachian) tube, corresponding with the first cleft. The membrane between the two forms the tympanic membrane.
Pharyngeal arches, pouches, and clefts: Video - Osmosis
网页The first pharyngeal arch is mainly associated with everything we need to chew. Structures from this arch are innervated by the trigeminal nerve –more specifically, its mandibular branch. In terms of bones, it gives rise to the maxilla (which forms the upper jaw) and the mandible (which forms the lower jaw).
Pharyngeal arches: Anatomy and clinical aspects - Kenhub
网页2023年10月30日 — The first pharyngeal arch (mandibular) gives rise to the structures of the jaw, two of the middle ear bones and the muscles of mastication. The maxillary artery (terminal part) is equally derived from the first arch.