Pulmonary surfactant, secreted via exocytosis of lamellar bodies (LB) by alveolar type II (AT II) cells, maintains low alveolar surface tension and is therefore essential for normal lung function.
This in turn causes abnormalities in the levels of the other hormones, Estrogen and Progesterone, thus adding to the chemical turmoil in the body. The common causes of Anovulatory Cycles include: Polycystic Ovarian Disease (PCOD). Hyperprolactinaemia (increased blood levels of the hormone Prolactin).
ANS: D Anovulatory cycles (failure to ovulate) because of various etiologies (age, stress, endocrinopathy) are the most common cause of cycle irregularity. 9. The clinical manifestations of a woman include the following: irregular or heavy bleeding, passage of large clots, and depletion of iron stores.