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Cited by 5Comparative Animal Anatomy StudiesDigestive system and related healthMedical and Biological Sciences

Anatomy and histology of the stomach in a newborn pygmy hippopotamus (Choeropsis liberiensis)

Endo, Hideki, Sasaki, Motoki, Kogiku, Hiroyuki, Hayashi, Yoshihiro, Komiya, Teruyuki, Narushima, Etsuo, Arishima, Kazuyoshi, Yamamoto, Masako·2001·Mammal Study
DOI 10.3106/mammalstudy.26.53
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Abstract

The stomach of a newborn pygmy hippopotamus (Choeropsis liberiensis) was examined by means of gross anatomy and light microscopic histology. Numerous papillae were observed on the inner surface of the diverticulum and forestomach, and reddish, smooth, and moist lamina were apparent in the posterior stomach. Histological sections revealed a keratinized squamous epithelium covering the entire inner surface of the diverticulum and forestomach. In the posterior stomach, the epithelium and lamina propria were composed of many papillae. Specific gastric glands containing chief and parietal cells occupied the lamina propria in the posterior stomach, however, the cardiac and pyloric glandular regions could not be observed in any section. Although the sample material was excised from the carcass of a newborn, we can conclude that the diverticulum and forestomach are morphologically similar to the rumen, reticulum or omasum in ruminants, whereas the posterior stomach functionally accords with the abomasum. The diverticulum and the forestomach may act as a fermentation tank and dehydration apparatus, respectively, for stomach contents, and the posterior stomach may function as the secretion system for gastric juices.

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  • The mucosal epithelium of the fore stomachs is lined with finger-like papillae, each varying in length, thickness, and shape; these papillae are less prominent in the newborn.

    “The mucosal epithelium of the fore stomachs is lined with finger-like papillae, each varying in length, thickness, and shape; these papillae are less prominent in the newborn (Macdonald and Hartman 1983;Endo et al. 2001).”

    From Choeropsis liberiensis (Artiodactyla: Hippopotamidae) (2019) · cites this paper as Endo et al. 2001

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Authors
Endo, H., Sasaki, M., Kogiku, H., Hayashi, Y., Komiya, T., Narushima, E., Arishima, K., & Yamamoto, M.
Affiliations
  • Kyoto University (JP)
  • The University of Tokyo (JP)
  • Azabu University (JP)
ORCID
Venue
Mammal Study
Publisher
Mammalogical Society of Japan
Published
2001
Volume
26
Issue
1
Pages
53-60
ISSN
  • 1343-4152 (ISSN-L)
  • 1348-6160
DOI
10.3106/mammalstudy.26.53
OpenAlex
W2030991126
Cited by
5
References
9
Citations by year
2019: 1 · 2017: 1 · 2015: 1 · 2013: 1
FWCI
0.40
Type
journal article
Language
en
Open access
closed
Locations
Mammal Study (publishedVersion)
Topics
  • Health Sciences › Medicine › Urology › Comparative Animal Anatomy Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Digestive system and related health
  • Health Sciences › Medicine › Anatomy › Medical and Biological Sciences
Keywords
pygmy hippopotamus, Choeropsis liberiensis, stomach anatomy, stomach histology, diverticulum, forestomach, papillae, keratinized squamous epithelium, gastric glands, chief cells, parietal cells, lamina propria, abomasum

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