Front | Back |
ESOPHAGUS
(digestive) |
Tube which allows food to travel down by peristalsis.
Present in mammals, amphibians, and chondrithyes. |
STOMACH
(digestive) |
Stores food, chemical and mechanically digests food.
Present in all three. |
PYLORIC SPHINCTER
(digestive) |
Seperates stomach from intestines.
Present in all three. |
SMALL INTESTINE
(digestive) |
Main site of absorption.
Present in all three. |
LARGE INTESTINES
(digestive) |
Main site of water absorption.
Present in mammals and mud puppy. Known as salt/rectal gland in dogfish for osmoregulation. |
CAECUM
(digestive) |
Used to digest plant matter.
Known as appendix in mammals and absent in other two. |
ANUS
(digestive) |
Site for excretion.
Known as cloca in amphibians and chondricthyes. |
PANCREAS
(digestive) |
Secretes digestive enzymes.
Present in other two. |
GALL BLADDER
(digestive) |
Stores bile.
Present in other two. |
LIVER
(digestive) |
Detoxifying organ.
Present in other two. |
KIDNEY
(urogenital) |
Site of urine production.
Metanephric in mammals, opisthonephric in chondrithyes, mesonephric in necturus, but usually opisthonephric in other amphibians. |
URETER
(urogenital) |
Delivers urine from kidney to the urinary bladder.
Known as opisthonephric duct in chondricthyes and mesonephric duct in necturus. |
URINARY BLADDER
(urogenital) |
Stores urine.
Present in necturus. Absent in chondrichthyes. |
URETHRA
(urogenital) |
Tube by which urine is excreted.
Absent in other two. |
TESTIS
(urogenital) |
Site of sperm production.
Present in other two, but as small lobes of the liver in chondrichthyes. |