Stomodeum
Stomodeum
The Stomodeum is an important structure in embryology, which forms the initial portion of the alimentary canal during the early stages of human development. It is a significant part of the oral cavity and plays a crucial role in the formation of the mouth and the anterior parts of the digestive tract.
Etymology[edit | edit source]
The term "Stomodeum" is derived from the Greek words "stoma", meaning mouth, and "deuma", meaning entrance. Thus, the term literally translates to "mouth entrance", signifying its role in the formation of the oral cavity.
Development[edit | edit source]
The stomodeum is formed during the third week of embryonic development. It is initially a depression in the ectoderm at the ventral face of the embryo. The stomodeum is separated from the primitive gut by the buccopharyngeal membrane, which eventually ruptures to establish a connection between the oral cavity and the digestive tract.
Structure[edit | edit source]
The stomodeum gives rise to several structures in the oral cavity. These include the Anterior Pituitary, Tooth Enamel, and parts of the Tongue. The stomodeum also contributes to the formation of the Nasal Cavity and the Pharynx.
Clinical Significance[edit | edit source]
Abnormalities in the development of the stomodeum can lead to several congenital disorders. These include Orofacial Clefts, Pierre Robin Sequence, and Treacher Collins Syndrome.
Related Terms[edit | edit source]
See Also[edit | edit source]
Stomodeum Resources | |
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Contributors: Prab R. Tumpati, MD