Labels: O, esophagus; S, stomach; SI, small intestine; LI, large intestine, Sp spleen; L, liver (raised…
Birds usually have three cavities or stomachs. Labels: 1, The esophagus. 2, Ingluvies (crop). 2, Proventriculus…
In reptiles the alimentary canal differs much from that of mammals or birds. As a general rule, it is…
There are two predominant forms of stomach in fish- one is like a bent tube (siphonal), and the other…
In some species of fish the small intestine is in two to eight coils. The large intestines are short…
Front view of two successive stages in the development of the alimentary canal.
"Zoaea of common shore-crab (Carcinus manas). The appendages are numbered; c., gills; i., alimentary…