morphology of a frog![click to hear](/images/speaker.jpg)
hind limb ![click to hear](/images/speaker.jpg)
Long powerful articulated member attached to the terminal end of the trunk; it has five webbed toes used for walking, jumping and swimming.
web ![click to hear](/images/speaker.jpg)
Fine membrane of skin connecting the digits of the foot; it stretches when the frog swims.
digit ![click to hear](/images/speaker.jpg)
Terminal end of the limbs formed of various articulated bones; it has neither nails nor claws.
forelimb ![click to hear](/images/speaker.jpg)
Short articulated member located behind the head; it has four digits and is used for walking.
lower eyelid ![click to hear](/images/speaker.jpg)
Thin muscular membrane that is translucent and movable; it rises from the lower edge of the eye to protect and cleanse it.
mouth ![click to hear](/images/speaker.jpg)
Anterior cavity of the digestive tract located on the ventral surface that allows food to be ingested.
nostril ![click to hear](/images/speaker.jpg)
External orifice of the nasal cavity located above the mouth and having olfactory and respiratory functions.
snout ![click to hear](/images/speaker.jpg)
Anterior round protruding portion of the head that forms the mouth and the nostrils.
eyeball ![click to hear](/images/speaker.jpg)
Protruding organ of sight contained in the bony cavity at the top of the head used to perceive light intensity, motion and shapes.
tympanum ![click to hear](/images/speaker.jpg)
Thin strong elastic membrane connected to the inner ear to capture acoustic vibrations.
upper eyelid ![click to hear](/images/speaker.jpg)
Thick fixed membrane.
trunk ![click to hear](/images/speaker.jpg)
Bony portion of the body to which the head and limbs are attached.