Buccopharyngeal membrane: Difference between revisions
(Created page with ' == Introduction == (oral membrane) (Latin, ''bucca'' = cheek) A membrane that forms the external upper membrane limit (cranial end) of the early gastrointestinal tract (GIT). T…') |
No edit summary |
||
| Line 1: | Line 1: | ||
== Introduction == | == Introduction == | ||
(oral membrane) (Latin, ''bucca'' = cheek) A membrane that forms the external upper membrane limit (cranial end) of the early gastrointestinal tract (GIT). This membrane region first develops in the trilaminar embryo (week 3) during gastrulation. The "membrane" quality comes from being composed of only ectoderm and endoderm, without a middle (intervening) layer of mesoderm. | (oral membrane) (Latin, ''bucca'' = cheek) A membrane that forms the external upper membrane limit (cranial end) of the early gastrointestinal tract (GIT). This membrane region first develops in the trilaminar embryo (week 3) during gastrulation. The "membrane" quality comes from being composed of only ectoderm and endoderm, without a middle (intervening) layer of mesoderm. | ||
The membrane lies at the floor of the ventral depression (stomadeum) where the oral cavity will open and will breakdown to form the initial "oral opening" of the gastrointestinal tract. | The membrane lies at the floor of the ventral depression (stomadeum) where the oral cavity will open and will breakdown to form the initial "oral opening" of the gastrointestinal tract. At the lower end of the gastrointestinal tract the membrane region that forms is the cloacal membrane. | ||
{{Template:Glossary}} | |||
{{Template:Footer}} | |||
Revision as of 13:07, 4 September 2009
Introduction
(oral membrane) (Latin, bucca = cheek) A membrane that forms the external upper membrane limit (cranial end) of the early gastrointestinal tract (GIT). This membrane region first develops in the trilaminar embryo (week 3) during gastrulation. The "membrane" quality comes from being composed of only ectoderm and endoderm, without a middle (intervening) layer of mesoderm.
The membrane lies at the floor of the ventral depression (stomadeum) where the oral cavity will open and will breakdown to form the initial "oral opening" of the gastrointestinal tract. At the lower end of the gastrointestinal tract the membrane region that forms is the cloacal membrane.
Glossary Links
- Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Term Link
Cite this page: Hill, M.A. (2024, May 5) Embryology Buccopharyngeal membrane. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Buccopharyngeal_membrane
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
