Normal Microbiota and the Host: Nose and throat (upper respiratory system) Eyes(conjunctiva) Mouth- Locations of normal Skin microbiota on and in the human body Large intestine Urinary and genital systems (lower urethra in both sexes and vagina in females) Figure 14.2 Figure 14.2 • Locations of normal microbiota on and in the human body Normal Microbiota and the Host: