Fig. 2
From: Principal ocular glands in the desert rodent Gerbillus tarabuli: morpho-functional adaptive analysis
(A) Light micrograph of gerbil bulbar conjunctiva: stratified epithelium (E) with clusters of goblet cells (arrows) and lamina propria (asterisk). H/E stain. (B) Meibomian glands embedded within the tarsal plate, central duct (arrow), palpebral conjunctiva (double arrow), and Muller muscle (asterisk). H/E stain; (B’) inset box, goblet cells (double arrow) interspersed amongst epithelial columnar prismatic cells of palpebral surface. Masson’s trichrome stain. (C) A portion of Meibomian glands (MG) displaying the acinar cells entirely full by lipid droplets. H/E stain. (D) A micrograph showing the Harderian gland (HG) and third eyelid (arrow) closely fastened. Masson’s trichrome stain. (D’) inset box, the presence of central hyalin cartilaginous tissue (arrow). Van Gieson stain. (E, F) Sections of HG, two secretory cells form the tubuloalveoli. (E) Pyramidal cells (arrowhead), prismatic cells (blue arrow), lumen (L). Van Gieson stain. (F) Section under a fluorescence microscope showing porphyrin (P) and pyramidal cells (arrowhead)