Skin Hair shaft Salt inhibits microbes Sweat pore Stratum corneum 。Lysozyme hydrolyzes Hair erector Epidermis muscle peptidoglycan 。Fatty acids inhibit Blood vessels Hair follicle some pathogens Dermis Nerve 88t8and perspiration) Figure 21.1Skin • Salt inhibits microbes • Lysozyme hydrolyzes peptidoglycan • Fatty acids inhibit some pathogens Figure 21.1