... and fluid flux rates were measured in vitro using novel gut sac preparations filled with native chyme. The sacs maintained the extreme physico-chemical conditions of the lumen seen in vivo . Overall, these results confirmed our hypothesis that the stomach, and anterior intestine and pyloric caecae regions...

...Shozo H. Sugiura; Ronaldo P. Ferraris SUMMARY The anatomical proximity and embryological relationship of the pyloric caeca (PC) and small intestine of rainbow trout has led to the frequent assumption, on little evidence, that they have the same enzymes and transporters. In trout, the PC...

... , Berlin : Springer-Verlag . Ahearn , G. A. ( 1990 ). Proline transport by brush-border membrane vesicles of starfish pyloric caeca . J. exp. Biol . 150 , 453 – 459 . 10.1242/jeb.150.1.453 Ahearn , G. A. and Clay , L. P. ( 1988 ). Sodium-coupled sugar and amino acid...

... antiport electrogenic epithelium brush-border membrane uesicles stoichiometry pyloric caeca echinoderm starfish Pycnopodia helianthoides In vertebrate cells Na + /H + exchange occurs via an electroneutral plasma membrane carrier protein exhibiting a 1:1 flux stoichiometry ( Grinstein...

...Gregory A. Ahearn ABSTRACT Starfish, unlike other echinoderms such as sea cucumbers and sea urchins, lack an effective intestine for nutrient absorption. Instead, they possess digestive diverticula called pyloric caeca which extend from the stomach wall into each arm and branch laterally...