(b) and (c) schematic representation of a transverse section through the foregut region and rhynchopore

Description:

(b) and (c) schematic representation of a transverse section through the foregut region and rhynchopore

bn – buccal nerve; cl – cephalic lacuna; lm – longitudinal muscles; ln – lateral nerve cords; nl − neural layer; r – rhynchocoel; rd – rhychodaeum; rm – radial myofibrils; sg – subepithelial glands; vp – vascular plexus. Bars: a – 0.5 mm; b – 100 μ m; c – 50 μm.