Flashcards in Chapter 7:: Biology of Hair Follicles Deck (10)
Decapentaplegic (Dpp/BMP), engrailed (en), Homeobox (hox), hedgehog/patched (hh/ptc), notch, ________, and branchless (Fgf) genes are all critical for hair follicle and vertebrate development in general
wingless/ armadillo (wg/wnt/catenin)
The first hairs formed are ________, which are nonpig- mented, soft, and fine.
means loss of hair
_______ a type of homeobox gene, is responsible for dorsal- ventral patterning
Types of Hair
___________ occurs where the inner root sheath begins to slough. Des- moglein expression markedly changes here as well, and trichilemmal or pilar cysts retain these characteristics
The Huxley layer is two to four cell layers thick and keratinizes above the Henle layer at the region known as ______________.
nside the cuticle, the cortex com- prises the bulk of the shaft and contains melanin. The cortex is arranged in large cable-like structures called ___________.
keratinocyte growth factor