caa a22 4500 47708723X CHVBK 20180405111507.0 cr unu---uuuuu 170330e19960101xx s 000 0 eng 10.1007/BF00615112 doi (NATIONALLICENCE)springer-10.1007/BF00615112 Morphological variability of smooth muscle cells in human nasal swell bodies [Elektronische Daten] [G. Grevers, W. Kamargakis, U. Welsch] The complex functional behavior of nasal swell bodies is still not completely understood. In the present study the histology of the vessels involved in the swelling mechanism is examined and the ultrastructural appearances described of the different types of smooth muscle cells located in the vascular wall of swell bodies in the human inferior turbinate. Even though the majority of smooth muscle cells of the nasal swell bodies showed a normal, elongated appearance comparable to other smooth muscle cells elsewhere in the body, a variety of cells with atypical shapes could be detected that have not been described previously in vessels of the nasal mucosa. The diameters of the smooth muscle cells in general were strikingly variable. The individual smooth muscle cells were surrounded by a basal lamina that was occasionally disrupted or doubled. Myoblasts were separated by a connective tissue space containing collagen fibrils, mature elastin fibers and bundles of microfibrils. The latter two types of fibers and fibrils occurred mainly in the outer parts of the muscular coat. The endowment of cytoplasmic components was similar in all smooth muscle cells of the vascular wall in the swell bodies. These findings indicate that the specific feature of smooth musculature presumably resides in the unusual morphological variability of the single cells present, as well as in the striking heterogeneity of the arrangement of bundles of these cells in the vascular wall. Springer-Verlag, 1996 Nasal swell bodies nationallicence Morphology nationallicence Smooth muscle cell nationallicence Ultrastructure nationallicence Grevers G. Department of Otolaryngology, Head and Neck Surgery, University of Munich, Marchioninistrasse 15, D-81366, Munich, Germany aut Kamargakis W. Department of Otolaryngology, Head and Neck Surgery, University of Munich, Marchioninistrasse 15, D-81366, Munich, Germany aut Welsch U. Department of Anatomy, University of Munich, Pettenkoferstrasse 11, D-80366, Munich, Germany aut European Archives of Oto-Rhino-Laryngology Springer-Verlag 253/3(1996-01-01), 147-151 0937-4477 253:3<147 1996 253 405 https://doi.org/10.1007/BF00615112 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00615112 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Grevers G. Department of Otolaryngology, Head and Neck Surgery, University of Munich, Marchioninistrasse 15, D-81366, Munich, Germany aut NATIONALLICENCE 700 1- Kamargakis W. Department of Otolaryngology, Head and Neck Surgery, University of Munich, Marchioninistrasse 15, D-81366, Munich, Germany aut NATIONALLICENCE 700 1- Welsch U. Department of Anatomy, University of Munich, Pettenkoferstrasse 11, D-80366, Munich, Germany aut NATIONALLICENCE 773 0- European Archives of Oto-Rhino-Laryngology Springer-Verlag 253/3(1996-01-01), 147-151 0937-4477 253:3<147 1996 253 405 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer