Esophageal gland
| Esophageal glands | |
|---|---|
Striated muscular fibers cut across. | |
| Details | |
| Identifiers | |
| Latin | glandulae oesophageae |
| TA98 | A05.4.01.017 |
| TA2 | 2893 |
| FMA | 71619 |
| Anatomical terminology] | |
The esophageal glands are glands that are part of the digestive system of various animals, including humans.
In humans
In humans the glands are known as the esophageal submucosal glands and are a part of the
exocrine glands of the mucous type.[citation needed
]
There are two types:
- Esophageal submucosal glands are compound tubulo-alveolar glands. Some serous cells are present. These glands are more numerous in the upper third of the esophagus.[2] They secrete acid mucin for lubrication.[citation needed]
- Esophageal cardiac glands- mucous glands located near the cardiac orifice (esophago-gastric junction) in the lamina propria mucosae. They secrete neutral mucin[2]that protects the esophagus from acidic gastric juices. They are simple tubular or branched tubular glands.
- There are also mucous glands present at the pharyngo-esophageal junction in the lamina propria mucosae. These are simple tubular or branched tubular glands.[2]
Each opens upon the surface by a long excretory duct.[citation needed]
In monoplacophorans
The esophageal gland is enlarged in large monoplacophoran species.[3]
In gastropods
The esophageal gland or oesophageal pouch is a part of the
Neomphalina.[4]
The size of the esophageal gland of the
hemocoel.[4]
References
This article incorporates text in the public domain from page 1146 of the 20th edition of Gray's Anatomy (1918).
This article incorporates Creative Commons (CC-BY-4.0) text from the reference[4]
External links
- Histology image: 49_07 at the University of Oklahoma Health Sciences Center
- Histology image: 10802loa – Histology Learning System at Boston University
