proventriculus


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proventriculus

[‚prō·vən′trik·yə·ləs]
(invertebrate zoology)
A sac anterior to the gizzard in earthworms.
A dilation of the foregut anterior to the midgut of Mandibulata.
(vertebrate zoology)
The true stomach of a bird, usually separated from the gizzard by a constriction.
References in periodicals archive ?
Inspection of the proventriculus and ventriculus revealed evidence of inflammation and mild ulceration.
The bird can take advantage of a wide variety of food due to presence of a glandular proventriculus and a strong gizzard.
Diagnosis: The pharynx has 6 teeth with a lateral plate on each side and the proventriculus extends about fifteen segments with approximately sixty muscle bands.
The weights of the proventriculus and ventriculus were lower in the group subjected to thermal stimulation with heat (1.
05) intestinal and proventriculus weight than females at 12 weeks of age, however, non-significant differences were noted between sexes at 15 weeks of age.
After the birds died or were euthanized, we collected tissues aseptically from the brain, trachea, lung, kidney, spleen, heart, cecal tonsil, liver, leg muscle, intestine and pancreas, and proventriculus for virus recovery.
On opening the carcasses, typical IBD lesions were observed; they included enlarged BFs which were also oedematous, haemorrhagic, and sometimes necrotic and atrophied, with caseous cheesy exudates in the mucosa, haemorrhages in the thigh, leg, and breast muscles, proventriculus, caecal tonsils, thymus, and spleen.
Alimentary canal, digestion, microbiome, phasmids, proventriculus, symbioses
Omnivorous insects have also adapted features within their intestinal tract to destroy the hard portions of the seed that could damage the midgut; the adaptations these insects have developed include sharp raduli covering the anterior portion of the proventriculus, thought to better destroy the hard seeds and protect the mid- and hindgut (Forsythe 1982).
Following dissection, all prey items (stomach contents) found anterior to the proventriculus, including in the mouth, crop, esophagus, and stomach, were removed and placed in 10% formalin and fixed for 3 w.
Use of 5 g SL powder tended to increase the weights of crop and proventriculus compared to control (P greater than 0.