"Filler" cells are nonimmunological cushions.
D000818:Animals; D002450:Cell Communication; D002455:Cell Division; D002470:Cell Survival; D002594:Cetylpyridinium / Q000494:pharmacology; D005557:Formaldehyde / Q000494:pharmacology; D005782:Gels; D008937:Mitomycins / Q000494:pharmacology; D051381:Rats; D012995:Solubility; D013154:Spleen / Q000166:cytology*; D013601:T-Lymphocytes / Q000276:immunology
D005782:Gels; D008937:Mitomycins; D005557:Formaldehyde; D002594:Cetylpyridinium