Pharynx membrane

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15 day old human embryo: The pharynx membrane is called the buccopharyngeal membrane .

The pharynx membrane ( membrana stomatopharyngealis ) is a delicate partition between the oral cavity and foregut in the early embryonic development of vertebrates . It consists only of the ectoderm and endoderm , so it has no mesodermal intermediate layer . In the human embryo, it tears as early as the end of the 3rd week, creating the connection between the oral cavity and the rest of the digestive system.


  • Karl-Josef Moll, Michaela Moll: Anatomy: Short textbook for the subject catalog 1. 18th edition. Elsevier, Urban & Fischer-Verlag, 2005, ISBN 3-437-41743-6 , p. 292.
  • Elke Lütjen-Drecoll, Johannes W. Rohen: Functional embryology: The development of the functional systems of the human organism. 3. Edition. Schattauer Verlag, 2006, ISBN 3-7945-2451-9 , p. 124 ff.