A-1. Original squamous epithelium: 20-year-old nulligravid. External cervical os slit-like and gaping a little; hyalin mucus blebs can be seen in it. The squamocolumnar junction is visible (open gland at 4 o´clock).
A-2. Original squamous epithelium: 36-year-old nulligravid. Cervical os with small, circular opening; small amounts of mucus around it. In some parts, small capillaries gleam through the epithelium indicating minor atrophy (functional colposcopy - hormonal diagnostics).