Electron Microscope Observations on the Glassy Layer of the Hair Follicle
December 1957
in “
Experimental Cell Research
”
TLDR The glassy layer of hair follicles has different fibril sizes and arrangements in guinea pigs and young mice.
The study examines the glassy layer of hair follicles in young mice and adult guinea pigs using an electron microscope. In guinea pigs, the glassy layer consists of collagen-type fibrils about 500 Å in diameter, organized into two arrays: an inner array parallel to the follicle length and an outer array at right angles. In young mice, the fibrils are about 200 Å in diameter and develop between the outer root sheath and a surrounding layer of fibroblasts.
