Research Article

Comparative Histomorphological Studies on Oesophagus of Catfish and Grass Carp

Figure 4

Semithin section of the stratified mucosal epithelium of the anterior part of oesophagus of catfish (a) showing the apical microridges (arrowheads), club cells (cc), goblet cells (gc), and basal cells (bc). In the posterior part of oesophagus of catfish (b), positive toluidine blue reaction was observed in apical epithelial cells (ep). Basal cells (arrow). (c) Oesophagus of grass carp showing microridges (arrowheads), metachromatic reaction of goblet cells (gc), and taste bud (Tb). Connective tissue lamina propria (Lp). (Toluidine blue, ).
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