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DEFINITION OF THE STAGES OF THE CYCLE OF THE SEMINIFEROUS EPITHELIUM IN THE RAT
Any area of any seminiferous tubule of the rat contains a few spermatogonia along the basement membrane, one or several layers of spermatocytes farther in, and groups of spermatids next to the lumenExpand
Origin, differentiation and renewal of the four main epithelial cell types in the mouse small intestine. V. Unitarian Theory of the origin of the four epithelial cell types.
The previous articles of this series provided presumptive evidence that the four main differentiated cell types in the epithelium of the mouse small intestine: villus columnar, mucous,Expand
Satellite cells as the source of nuclei in muscles of growing rats
The source of the new nuclei appearing during the growth of muscle fibers was examined in the tibialis anterior muscle of young Sherman rats (14–17 days of age) using radioautography at variousExpand
Dynamics of epithelial cells in the corpus of the mouse stomach. I. Identification of proliferative cell types and pinpointing of the stem cell
In a recent study of the corpus epithelium in the mouse stomach, eleven cell types have been identified and enumerated (Karam and Leblond: Anat. Rec. 232:231–246, 1992). The dynamics of these cellsExpand
Differentiation and renewal of spermatogonia in the monkey, Macacus rhesus.
Origin, differentiation and renewal of the four main epithelial cell types in the mouse small intestine. I. Columnar cell.
The mucous cell population of duodenum, jejunum and ileum was investigated in the light and electron microscopes with the help of radioautography in mice sacrificed at various times after singleExpand
Electron microscopic identification of three classes of oligodendrocytes and a preliminary study of their proliferative activity in the corpus callosum of young rats
In recent electron microscope studies of the corpus callosum in 60–80 gm male rats, some of the cells were identified as microglia by staining with the weak silver carbonate method of delExpand
Dynamics of epithelial cells in the corpus of the mouse stomach. II. Outward migration of pit cells
The pit cells (or surface mucous cells) present along pit walls and gastric surface have been investigated by electron microscopy and radioautography after a pulse or continuous infusion ofExpand
NATURE OF DIVIDING NUCLEI IN SKELETAL MUSCLE OF GROWING RATS
Much is known about the early stages of muscle development-the proliferation of myoblasts, their fusion into myotubes, and the transformation of myotubes into young muscle fibers . However, the modeExpand
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