| A | B |
|---|
| cutaneous respiration | in some animals, the exchagne of gases through the skin |
| pulmonary respiration | a type of respiration involving lungs, in which air is inhaled and exhaled by changing the volume and pressure of air in the mouth |
| nictitating membrane | a third membrane that can cover the eyeball |
| tympanic membrane | eardrum |
| vent | in amphibians, the opening through which waste and eggs or sperm exit the body |
| amplexus | the firm embrace of the male frog when he approaches the female and climbs onto her back to initiate fertilization |
| amphibian | a class of vertebrate animals who undergo metamorphosis, have this moist skin with no skales, use gills, lungs and skin in respiration, if present the feet are webbed and no claws, eggs do not have shells and fertilization occurs in moist areas |
| pulmonary circulation | the movement of blood between the heart and the lungs |
| systemic circulation | the movement of blood between the heart and all parts of the body except the lungs |
| vertebrate | an animal with a backbone |
| endoskeleton | an internal skeleton |
| lungs | the respiratory organ where gas exchange occurs |
| kidney | an excretory organ in which wastes are filtered from the blood |
| gallbladder | the saclike organ in vertebrates that is connected to the liver that stores bile |
| ileum | the middle portion of the small intestine |
| mesentary | a fanlike membrane that holds the digestive organs in place |
| duodenum | the first section of the small intestine |
| mucous gland | the mucus secreting epithelial (skin) tissue which secretes a thick, slimy fluid produced by the mucous membranes |
