Preferred Label : rumen;
MeSH definition : The first stomach of ruminants. It lies on the left side of the body, occupying the
whole of the left side of the abdomen and even stretching across the median plane
of the body to the right side. It is capacious, divided into an upper and a lower
sac, each of which has a blind sac at its posterior extremity. The rumen is lined
by mucous membrane containing no digestive glands, but mucus-secreting glands are
present in large numbers. Coarse, partially chewed food is stored and churned in the
rumen until the animal finds circumstances convenient for rumination. When this occurs,
little balls of food are regurgitated through the esophagus into the mouth, and are
subjected to a second more thorough mastication, swallowed, and passed on into other
parts of the compound stomach. (From Black's Veterinary Dictionary, 17th ed);
MeSH synonym : rumens;
MeSH annotation : a ruminant's 1st stomach; dis: coord IM with STOMACH DISEASES /vet (IM); neopl: coord
IM with STOMACH NEOPLASMS /vet (IM) histol type /vet (IM); ulcer: coord IM with
STOMACH ULCER /vet (IM);
Wikipedia link : https://en.wikipedia.org/wiki/Rumen;
Origin ID : D012417;
UMLS CUI : C0035946;
Allowable qualifiers
- Automatic exact mappings (from CISMeF team)
- Record concept(s)
- See also inter- (CISMeF)
- Semantic type(s)
- UMLS correspondences (same concept)
The first stomach of ruminants. It lies on the left side of the body, occupying the
whole of the left side of the abdomen and even stretching across the median plane
of the body to the right side. It is capacious, divided into an upper and a lower
sac, each of which has a blind sac at its posterior extremity. The rumen is lined
by mucous membrane containing no digestive glands, but mucus-secreting glands are
present in large numbers. Coarse, partially chewed food is stored and churned in the
rumen until the animal finds circumstances convenient for rumination. When this occurs,
little balls of food are regurgitated through the esophagus into the mouth, and are
subjected to a second more thorough mastication, swallowed, and passed on into other
parts of the compound stomach. (From Black's Veterinary Dictionary, 17th ed)
