Gap junctions between sensory and supporting cells of the utricular and saccular maculae in Anolis carolinensis examined by transmission electron microscopy

The American Journal of Anatomy
D S Zahm

Abstract

Gap junctions, related to projections of sensory cells into supporting cells, occur from supranuclear to basal levels on hair cells, in both saccular and utricular maculae of the lizard, Anolis carolinensis. The larger numbers of junctional projections observed at some levels may indicate a zonular distribution within the neuroepithelia, but only on supracalyceal parts of hair cells in the utricular striola was a series of gap junctions found to be closely associated with the reticular lamina. The dimensions of the junctions, as characterized by the distance between opposite extremities of the arciform membrane appositions, averaged 0.14, 0.19, and 0.28 microgram, respectively, on noncalyceal utricular and saccular hair cells, and calyceal cells of the utricular striola. A notable number of the junctional profiles were adjacent or continuous to open, coated, putatively endocytotic vesicles. These findings are discussed in respect to phylogenetic, developmental, and functional considerations.

References

Jan 1, 1977·Tissue & Cell·W J Larsen
Jan 1, 1975·Tissue & Cell·D F AlbertiniP J Olds
Jun 1, 1977·Proceedings of the National Academy of Sciences of the United States of America·A J Hudspeth, D P Corey
Jun 1, 1979·Journal of Ultrastructure Research·S B YanceyJ P Revel
Oct 1, 1979·Experimental Cell Research·J D SheridanJ D Pitts
May 1, 1978·The Anatomical Record·I L Baird, G F Lowman
Jul 1, 1978·The Journal of Cell Biology·N B GilulaW H Beers
Aug 1, 1978·The Journal of Cell Biology·A G Yee, J P Revel
Sep 15, 1978·The Journal of Comparative Neurology·N Hirokawa
Feb 14, 1977·Cell and Tissue Research·D Bagger-Sjöbäck, A Flock
Feb 1, 1977·Journal of Neurocytology·K Hama, K Saito
Jul 1, 1976·Acta Oto-laryngologica·S IuratoE Reale
Nov 1, 1976·The American Journal of Anatomy·J B NadolT F Weiss
Aug 1, 1976·Journal of Neurocytology·R L Gulley, T S Reese
Oct 1, 1973·Journal of Ultrastructure Research·D F OrwinN E Flower
Jun 1, 1972·The Journal of Cell Biology·D S Friend, N B Gilula
Apr 1, 1974·Proceedings of the National Academy of Sciences of the United States of America·V LoprestiC Levinthal
May 1, 1973·Journal of Ultrastructure Research·R G JohnsonD M Preus
Jan 1, 1974·International Review of Cytology·L A Staehelin
Jan 1, 1973·The Anatomical Record·F B MerkC R Botticelli
Mar 1, 1974·The Journal of the Acoustical Society of America·T F WeissD W Altmann
Jan 1, 1969·Zeitschrift für Zellforschung und mikroskopische Anatomie·K Hama
Mar 1, 1968·The Journal of General Physiology·L BarrM M Dewey

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