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Ultrastructure of thymic myoid cells
Author(s) -
Bockman Dale E.,
Winborn William B.
Publication year - 1969
Publication title -
journal of morphology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 74
eISSN - 1097-4687
pISSN - 0362-2525
DOI - 10.1002/jmor.1051290205
Subject(s) - biology , ultrastructure , parenchyma , organelle , anatomy , cytoplasm , myocyte , microbiology and biotechnology , pathology , medicine , botany
Mature myoid cells in the parenchyma of reptilian thymus contain all the organelles typical of striated muscle. The presence of both immature and degenerating stages indicates a turnover of myoid cells in the adult thymus. In the earlier stages of differentiation myoid cells resemble thymic epithelial cells. A close parallel exists between developing myoid cells, skeletal muscle differentiating in vitro , rhabdomyoma and rhabdomyosarcoma. Elaborate lattice‐like structures are formed by transverse tubules. These structures are compared with similar configurations which have been described in muscle and mitochondrial cristae.