Accession Number:

AD0453489

Title:

THE CYTOLOGY OF THE CUTICLE OF THE CORTEX, THE CORTEX, AND THE MEDULLA OF THE MOUSE HAIR,

Descriptive Note:

Corporate Author:

TELE-DYNAMICS DIV AMERICAN BOSCH ARMA CORP PHILADELPHIA PA

Personal Author(s):

Report Date:

1963-12-30

Pagination or Media Count:

1.0

Abstract:

Ultrastructural studies of the cells of the cuticle of the cortex, the cortex, and the medulla of the anagen mouse hair reveal that all three layers have fibrils which arise from the desmosomes. While these fibrils are one of the major components of the keratinized cortical cell, they are sparse in the cuticle of the cortex and the medulla. In the medulla, large granules form, unrelated to the fibrils. Mitochondrial vacuolization occurs in the medullary cells nearer the skin. From one cell to the one above, the medullary cell cytoplasmic organelles including the medullary droplets surrounding the vacuolated mitochondria disappear, and the region is filled with granular nonfibrillar electron dense material. The differences between this process in the medulla and that of the internal root sheath, and in locations where keratinization occurs, are pointed out. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE