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THE DIGESTIVE SYSTEM OF VERTEBRATES

AMPHIBIANS: Frog


Leopard frog
Leopard frog (photo by Ted Hobert)   (from CD Chapter 2)


Table 8.1.  (from CD Chapter 8)
Chitinase activity in amphibians & reptiles


Table 8.6.  (from CD Chapter 8)
Proteinase activity in the pancreas of fish and amphibians
Enzyme activities expressed as the equivalent amount of bovine trypsin (casein or BAEE) or chymotrypsin (BTEE) under the same conditions. a measurements of enzyme activity in the pyloric cecal tissue may account for the lower values, b frogs were fed, c frogs fasted at 5 C, * group C: 0-20 µg RNase per gram of pancreatic tissue. (from Vonk and Western 1984)


Table 9.4.  (from CD Chapter 9)
Microbial counts in the hindgut of vertebrates



Populations of endocrine cells that are immunoreactive to peptides in the digestive system of the frog
Figure 11.6.  Populations of endocrine cells that are immunoreactive to peptides in the digestive system of the frog Rana catesbeiana.  (From Fujita et al. 1981)     (from CD Chapter 11)