Results 211 to 220 of about 10,925 (255)
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Gastrin Activity in the Chicken Proventriculus
Nature, 1973Reaumur and Spallanzani1 used birds as experimental animals in the early days of digestive physiology; other workers on avian gastric digestion include Cheney2, Friedman3 and Long4. The bird lacks the gastric antrum analogous to that in the mammalian species and there is a tubularly shaped glandular stomach called proventriculus which produces the ...
M O, Olowo-Okorun, B O, Amure
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Histochemical localization of carbonic anhydrase in fowl proventriculus
Experientia, 1980The carbonic anhydrase activity in fowl proventriculus was studied by the histochemical method of Hanssom. The activity was observed in the mucose membrane cells and in proventricular gland cells. These results, about which there is disagreement in the literature, are discussed in the text.
P, Palatroni +2 more
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Glycogen in the proventriculus of the tsetse fly
Journal of Insect Physiology, 1973Abstract Glycogen was detected in the proventriculus of the tsetse fly, Glossina morsitans morsitans, by ultrastructural, histochemical, and biochemical methods. This organ contained ten times or more glycogen on a dry weight basis than was found in the thoracic muscle.
M A, D'Costa, M J, Rice, A, Latif
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Filtering mechanism of the honey bee proventriculus
Physiological Entomology, 1986ABSTRACT. The fine structure and function of a honey bee's ( Apis mellifera Linn.) proventriculus were studied by scanning electron microscopy and video‐recording. Our observations revealed that the proventriculus is used to engulf pollen and other particles which ...
YING‐SHIN PENG, JERRY M. MARSTON
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Morphology of the proventriculus of African ostrich
Indian Journal of Animal Research, 2017The objective of this study was to investigate the morphological features of the proventriculus of African ostrich (Struthio camelus). The location, appearance, and histological characteristics of the proventriculus were observed on postnatal day 90.
Haifeng Zhang, Jiaxiang Wang
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Proventriculus of Cephalotes ants: A structural and comparative analysis
Micron, 2010The use of optic microscopy and scanning electron microscopy propitiated the comparative examination of the structure of the proventriculus bulb of Cephalotes atratus, Cephalotes clypeatus and Cephalotes pusillus. This portion of the digestive tract possesses highly sclerotized projections which act in the selection of victuals.
Bution, Murillo L. +2 more
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Action of serotonin on gastric (proventriculus) secretion in chickens
Comparative and General Pharmacology, 1971Abstract 1. 1. Serotonin and duodenal distension inhibited basal, histamine-induced, and pentagastrin-induced gastric secretion in chickens. 2. 2. In UML-491 and reserpine pre-treated chickens, the inhibitory effects of duodenal distension and serotonin on gastric secretion were abolished. 3. 3.
W L, Joyner, E, Kokas
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Partial purification of pepsin from turkey proventriculus
World Journal of Microbiology and Biotechnology, 2008In the present study, turkey proventriculus (stomach) was mixed with 10% NaCl (1:2 w/v) and extracted by centrifugation to produce crude extract. The partial purification of the extract was carried out by using Sephadex G-75 resin in gel filtration column chromatography. Crude extract (CE) and fractions obtained by gel filtration were analysed for milk-
Temiz, Hasan +4 more
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The Venous System of the Proventriculus of Duck (Anas domesticus)
The Japanese Journal of Veterinary Science, 1976The proventriculus of duck is lacking in the V. proventricularis dextra and V. proventriculolienalis both of which are present in the chicken. In it the V. lienalis empties directly into the V. portae hepatis dextra. Therefore, most of the blood from the proventriculus of duck is drained by the well-developed V.
T, Nishida, K, Mochizuki
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The proventriculus of some trichopterous larvae
Journal of Zoology, 1967A well‐developed proventriculus is present in larvae of the Polycentropodidae and Hydropsychidae. Its structure varies greatly between species but there is a common bilaterally symmetrical pattern based on a pair of posterior ventral folds. These are continuous with the sides of a ventral gap in the fold of foregut that invaginates into the midgut ...
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