Ultrastructure of the encapsulated corpuscles in the lower lip mucosa of the mouse.
Under the light microscope, the encapsulated corpuscles of the mouse lower lip mucosa were only classified into 4 types, simple, ramifying, branched-axon, and clew-like corpuscles. The ultrastructural characteristics of the branched-axon and clew-like corpuscles, however, were not reported. Five male mice, aged 4 to 8 weeks, were used. The mouse lower lip mucosa were examined with a electron microscope. Two types of corpuscles were distinguished. The first type had numerous branched axon terminals and bilaterally symmetrical and/or asymmetrical Schwann cell cytoplasmic lamellae in a few perineural capsules. The second type did not have perineural capsules. We concluded that these two types fell into the categories of branched-axon and/or clew-like corpuscles in the light microscopical observations. We concluded also that first type fit the category of coiled simple corpuscles and second type fit the category of Meissner-like corpuscles according to the electron microscopical observations.
Tazaki
M
M
Tokyo Dental College.
Sakada
S
S
D000818:Animals; D008046:Lip / Q000648:ultrastructure*; D008297:Male; D051379:Mice; D009061:Mouth Mucosa / Q000294:innervation* / Q000648:ultrastructure*; D009412:Nerve Fibers / Q000648:ultrastructure*