proventriculus


Also found in: Dictionary, Encyclopedia, Wikipedia.

proventriculus

(prō′vĕn-trĭk′yə-ləs)
n. pl. proventricu·li (-lī′)
1. The division of the stomach in birds that secretes digestive enzymes and passes food from the crop to the gizzard.
2. A similar digestive chamber in certain insects and worms.

pro′ven·tric′u·lar (-lər) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
References in periodicals archive ?
For necropsy, the tissues of brain, trachea, caecal tonsil, liver, spleen, bursa of Fabricius, proventriculus, and thymus were fixed in 10% buffered formalin.
The elongate proventriculus and the longer, straighter blades of the compound setae distinguish this species from O.
The constitutive expression levels of IFITM1 and IFITM3 in the brain (B), bursa of Fabricius (BF), cecum (CE), cecal tonsil (CT), gizzard (GI), heart (H), Harderian gland (HG), kidney (K), liver (LI), lung (LU), muscle (M), pancreas (P), proventriculus (PR), small intestine (SI), skin (SK), spleen (SP), thymus (T), and trachea (TR) were assessed by qRT-PCR.
Two clearly delimited gizzards in 5 and 6, the anterior preceded by a proventriculus in 4.
The weights of the proventriculus and ventriculus were lower in the group subjected to thermal stimulation with heat (1.39[degrees]C) and in the MS control group (no stimulation--multiple stage).
Male birds showed higher (pless than 0.05) intestinal and proventriculus weight than females at 12 weeks of age, however, non-significant differences were noted between sexes at 15 weeks of age.
It was replicated systemically in the trachea, muscle, proventriculus, intestine (pancreas), cecal tonsil, lung, kidney, and heart, and was present at low titers ([10.sup.1.8-2.6] [TCID.sub.50]/0.1 mL).
Common areas of contention are the existence of a proventriculus and gastric caeca.
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 postmortem examination of the carcasses, sections of liver, heart, spleen, kidney, lung, trachea, proventriculus, gizzard, duodenum, ileum, cecum, and brain were removed and fixed in 10% buffered formalin.
The liver, kidney, lung, heart, spleen, bursa of Fabricius, Meckel's diverticulum, proventriculus, rectum, brain, and gizzard samples were collected and fixed in formalin.
Potassium chromate dissolved in water was fed by feeding syringe directly into ventriculus while Vitamin E and Se powder was fed after dissolving in (600mg Vitamin E and Se in 0.5 ml) olive oil directly into proventriculus. Chicks of control group ([T.sub.1]) were provided only with basal diet and drinking water.