Caption: Frog tympanum / tympanic membrane cell surface (Eleutherodactylus coqui). Shown here is the surface of the frog tympanic membrane (ear membrane). Two individual epithelial cells with highly convoluted surface ridges are visible. In frogs a distinct tympanic fold wraps around the tympanum. The tympanum is composed of nonglandular skin cells (epithelial cells) and unlike the human eardrum it is situated externally on the frog (in most species behind the eye). It functions in a similar fashion to the human eardrum. There is a bone attached to the tympanic membrane that also attaches to the oval window of the inner ear. When sound waves strike the membrane vibrations are transferred via this bone to the fluid of the inner ear. This in turn causes receptors within the inner ear to be stimulated, sending a transmission to the brain for processing.
Magnification*: x440
Type: SEM
Copyright 2008 Dennis Kunkel Microscopy, Inc.
Keywords: 25181D,miscellaneous vertebrates,misc. vertebrates,frog,coqui,coqui frog,pest,Eleutherodactylus,Hawaii,12.01.08,tympanic membrane,misc. vertebrate,tympanum,frog auditory organ,frog hearing organ,frog sense organ,frog ear,frog hearing,amphibian ear,amphibian hearing,amphibian hearing organ,amphibian tympanum,ear membrane,epithelia,epithelial cell,epithelial cells,epithelium,frog skin cell,frog skin cells,ear epithelia,ear epithelium,SEM,tympanic fold,tympanic folds,nonglandular skin cell,nonglandular skin cells,skin cell,skin cells,ear,agricultural pest,agriculture pest,cell surface,frog pest,invasive pest,invasive species,non-glandular skin cells,tympanum cell surface,ear membrane vibration,ear membrane vibrations,membrane vibration,membrane vibrations,eardrum