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Figure 2


Fig. 2. Dissections of hamster cheek pouch from M. auratus. (A) Bifurcation of retractor muscle posterior to caudal end of pouch (apex). (B) Transverse bisection of pouch wall showing longitudinal folds. (C) A longitudinal cut on the lateral wall reveals the morphology of the pouch lumen at the point of retractor insertion, where longitudinal folds end and apex pocket begins. (D) Full cheek pouch. All pictures are from hamsters given nembutol anesthesia (9 mg 100 g–1 body mass) then sacrificed with C02 asphyxiation, and fixed in 4% paraformaldehyde solution, except in D, where the animal received no anesthesia before CO2 in order to maintain the full pouch. Scale bars=1 cm.





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