The ultrastructure of the sensory hairs of the paratympanic organ receptor cells in chicken

1996 ◽  
Vol 193 (6) ◽  
Author(s):  
Francesco Giannessi ◽  
Riccardo Ruffoli
Keyword(s):  
Receptor Cells ◽  
Sensory Hairs ◽  
Paratympanic Organ

scholarly journals A STUDY OF THE ORIENTATION OF THE SENSORY HAIRS OF THE RECEPTOR CELLS IN THE LATERAL LINE ORGAN OF FISH, WITH SPECIAL REFERENCE TO THE FUNCTION OF THE RECEPTORS

1962 ◽  
Vol 15 (1) ◽  
pp. 19-27 ◽  
Author(s):  
Åke Flock ◽  
Jan Wersäll
Keyword(s):  
Lateral Line ◽  
Teleost Fish ◽  
Receptor Cell ◽  
The Other ◽  
Receptor Cells ◽  
Lateral Line Organ ◽  
Sensory Hairs ◽  
Crista Ampullaris ◽  
Functional Polarization ◽  
Line Organ

The morphology of the hair bundles on top of the receptor cells in the lateral line organ of the teleost fish Lota vulgaris is described. Each receptor cell shows a distinct morphological polarization. Two groups of receptor cells can be distingiushed, one consisting of cells polarized towards the head, the other consisting of cells polarized towards the tail. In the crista ampullaris all cells are polarized in the same direction. An hypothesis is proposed for the function of the receptor cells in the lateral line organ and the labyrinth based on a correlation of morphological and functional polarization.

scholarly journals Actin filaments in sensory hairs of inner ear receptor cells.

1977 ◽  
Vol 75 (2) ◽  
pp. 339-343 ◽  
Author(s):  
A Flock ◽  
H C Cheung
Keyword(s):  
Guinea Pig ◽  
Inner Ear ◽  
Actin Filaments ◽  
Receptor Cell ◽  
Cell Soma ◽  
Receptor Cells ◽  
Sensory Hairs ◽  
Crista Ampullaris ◽  
The Individual ◽  
Triton X

Receptor cells in the ear are excited through the bending of sensory hairs which project in a bundle from their surface. The individual stereocilia of a bundle contain filaments about 5 nm in diameter. The identity of these filaments has been investigated in the crista ampullaris of the frog and guinea pig by a technique of decoration with subfragment-1 of myosin (S-1). After demembranation with Triton X-100 and incubation with S-1, "arrowhead" formation was observed along the filaments of the stereocilia and their rootlets and also along filaments in the cuticular plate inside the receptor cell. The distance between attached S-1 was 35 nm and arrowheads pointed in towards the cell soma. It is concluded that the filaments of stereocilia are composed of actin.

Studies on the Sensory Hairs of Receptor Cells in the Inner Ear

1977 ◽  
Vol 83 (1-6) ◽  
pp. 85-91 ◽  
Author(s):  
Å. Flock ◽  
B. Flock ◽  
E. Murray
Keyword(s):  
Inner Ear ◽  
Receptor Cells ◽  
Sensory Hairs

Cytoplasmic Organization in the Receptor Cells of the Crista Ampullaris

1972 ◽  
Vol 30 ◽  
pp. 60-61 ◽  
Author(s):  
Robert F. Dunn
Keyword(s):  
Fine Particles ◽  
Apical Cell ◽  
Apical Region ◽  
Receptor Cells ◽  
Cuticular Plate ◽  
Morphological Organization ◽  
Crista Ampullaris ◽  
Cytoplasmic Organization ◽  
High Degree ◽  
General Appearance

Receptor cells of the cristae in the vestibular labyrinth of the bullfrog, Rana catesbiana, show a high degree of morphological organization. Four specialized regions may be distinguished: the apical region, the supranuclear region, the paranuclear region, and the basilar region.The apical region includes a single kinocilium, approximately 40 stereocilia, and many small microvilli all projecting from the apical cell surface into the lumen of the ampulla. A cuticular plate, located at the base of the stereocilia, contains filamentous attachments of the stereocilia, and has the general appearance of a homogeneous aggregation of fine particles (Fig. 1). An accumulation of mitochondria is located within the cytoplasm basal to the cuticular plate.

Ultrastructural aspects of olfactory signal transduction and its development

1994 ◽  
Vol 52 ◽  
pp. 142-143
Author(s):  
Bert Ph. M. Menco
Keyword(s):  
Signal Transduction ◽  
Olfactory Receptor ◽  
Receptor Cell ◽  
Freeze Substitution ◽  
Luminal Surface ◽  
Tissue Sections ◽  
Olfactory Receptor Cells ◽  
Receptor Cells ◽  
Olfactory Signal ◽  
Odor Molecule

Vertebrate olfactory receptor cells are specialized neurons that have numerous long tapering cilia. The distal parts of these cilia line the interface between the external odorous environment and the luminal surface of the olfactory epithelium. The length and number of these cilia results in a large surface area that presumably increases the chance that an odor molecule will meet a receptor cell. Advanced methods of cryoprepration and immuno-gold labeling were particularly useful to preserve the delicate ultrastructural and immunocytochemical features of olfactory cilia required for localization of molecules involved in olfactory signal-transduction. We subjected olfactory tissues to freeze-substitution in acetone (unfixed tissues) or methanol (fixed tissues) followed by low temperature embedding in Lowicryl K11M for that purpose. Tissue sections were immunoreacted with several antibodies against proteins that are presumably important in olfactory signal-transduction.

Taste Transductions in Taste Receptor Cells: Basic Tastes and Moreover

2014 ◽  
Vol 20 (16) ◽  
pp. 2684-2692 ◽  
Author(s):  
Shusuke Iwata ◽  
Ryusuke Yoshida ◽  
Yuzo Ninomiya
Keyword(s):  
Taste Receptor ◽  
Receptor Cells ◽  
Taste Receptor Cells
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