Morphometric study of the aortic body type I cell.
The subclavian glomus (aortic body) of New Zealand white rabbits was examined ultrastructurally using stereological morphometric analysis. The Type I cells of the glomus possess numerous electron-opaque vesicles which occupy approximately 12% of the cytoplasmic volume of the cells. The amine-containing vesicles comprise a heterogeneous population of vesicles with a mean caliper diameter of 113.5 nm. Differences in vesicle diameters may indicate the storage of different biogenic amines, different secretion or maturation states between glomera and/or additional physiological functions for the glomera.
D000818:Animals; D001016:Aortic Bodies / Q000648:ultrastructure*; D002628:Chemoreceptor Cells / Q000187:drug effects; D005260:Female; D002479:Inclusion Bodies / Q000648:ultrastructure; D008297:Male; D008854:Microscopy, Electron; D010234:Paraganglia, Nonchromaffin / Q000648:ultrastructure*; D011817:Rabbits