The skin prevents pathogen entry with its dry, thick, dead outer cell layer, and antimicrobial secretions that lower pH.
The skin acts as a surface barrier against pathogens through its dry, thick, dead outer layer, antimicrobial secretions from sebaceous glands (fatty and lactic acids lowering pH), and tough cellular structure.
| Front | surface barriers preventing the entry of pathogens into the body - skin |
|---|---|
| Back | dry, thick, tough region of dead surface cells, sebaceous glands secrete chemicals and enzymes exhibiting microbial growth, lactid and fatty acids to lower pH |
Tags: 6_3_disease_defenses
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