Vagina

Question 1

structure of vagina

Answer 1

mucosa = strat squamous with numerous transverse folds
- LP = loose fibroelastic CT, highly vascular, no glands, neutrophils, WBCs, and few sensory nerves

muscularis = SmM and elastic fibers –> thin circular layer with thicker outer long layer

adventitia = dense fibroelastic CT

Question 2

basal cells of vagina

Answer 2

renew strat squamous epi and continuously under control of estradiol

Question 3

vaginal epithelium is abundant with what compound

Answer 3

glycogen

Question 4

hormonaly regulation of vagina

Answer 4

estradiol = maintains thickness of epithelium; stimulates production of glycogen
- converted to lactic acid by vaginal flora to maintain acidic pH

progesterone = decrease proliferation and increases differentiation