Class Amphibia Flashcards
Amphi
Double
Bios
Life
Amphibia
Part of life in water and part on land
Smooth most skin with many glands like?
Mucous glands
Poison glands
Chromatophores
How do amphibians breathe?
They respirate through their skin
Tetrapod
4 limbs
No true claws/nails
Nares=nostrils
Positioned at tip of head
Open into anterior mouth
Lay eggs where?
In water or moist environments
Order gymnophiona
Apods or caecilians
What type of body does order gymnophiona have?
Long/ slender body
No limbs
Terminal anus
Usually blind
Where do order gymnophiona live?
Tropical forests and they burrow into the ground
THEY ARE LIMBLESS
Order caudata
Tailed amphibians, urodeles, salamanders
Characteristics of order caudata
Tailed
Legs are equal length at 90 degree angle to body
May have gills, lungs, both or neither
Order caudata most eggs are laid where?
In water
Larvae have external gills
Purely terrestrial
Lay eggs in clusters in moist areas
Direct development
Young are mini-adults with no larval stage
Some internal fertilization male? Female?
Male: lays spermatophore
Female: takes spermatophore into her cloaca
Spermatophore
Sperm packet
Paedomorphosis
Adults retain juvenile characteristics
Aquatic species
Retain external gills
Give examples of order Caudata
Axolotl, mudpuppy salamander
Order anura
Frogs and toads
Anura
Without tail
Order Anura characteristics
No tail in adult
Hind limbs longer than forelimbs
Young and adults are very different
Anura larvae
Gill breathing herbivores
Order Anura adults
Lung breathing carnivores
Order Anura amplexus(reproduction)
Male clasps female around abdomen and squeezes
Eggs are released
Male deposits sperm on eggs
External fertilization
Fun fact order anura
Some tropical species have direct development ( froglet emerges from egg
Give examples of order anura
Tree frog
Dart frog
Turtle frog
Epiglottis
Prevents food from going into the lungs
Bile
Gall bladder stores this
Gall bladder
Found under liver, stores bile
Nictitating membrane
Protective third eye lid
Kidney
Filters waste from the blood
Peritoneum
Spiderweb like membrane that covers the organs
Pancreas
Makes insulin
Duodenum
First part of small intestine
Mesentery
Membrane holds the coils of the small intestine together
Coronary artery
Blood vessels leave the heart here
Liver
Largest organ in frogs
Spleen
Stores blood & part of the immune system