At what position is the bucco-pharyngeal membrane located on the embryonic disc?
Understand the Problem
The question is asking for the specific location of the bucco-pharyngeal membrane in relation to the embryonic disc, indicating a need for knowledge about embryonic development.
Answer
At the rostral (anterior) end of the embryonic disc.
The buccopharyngeal membrane is located at the rostral (anterior) end of the embryonic disc.
Answer for screen readers
The buccopharyngeal membrane is located at the rostral (anterior) end of the embryonic disc.
More Information
The buccopharyngeal membrane, also known as the oropharyngeal membrane, represents the future site of the mouth in the developing embryo. It is composed of ectoderm and endoderm layers without intervening mesoderm.
Tips
Confusing the buccopharyngeal membrane with the cloacal membrane can occur; remember that the buccopharyngeal membrane is located at the anterior end, while the cloacal membrane is at the posterior end.
Sources
- Buccopharyngeal Membrane - ScienceDirect Topics - sciencedirect.com
- BGDB Face and Ear - Trilaminar Embryo - UNSW Embryology - embryology.med.unsw.edu.au
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