The mucosa of the cervical canal (endocervix) is composed of a single layer of mucin-secreting columnar epithelium, which lines both the surface and the underlying glandular crypts. Isolated neuroendocrine epithelial cells of argentaffin type or argyrophil type are admixed with the normal endocervical cells.
Air travel Pregnant travellers can normally travel safely by air. In the absence of medical or obstetrical complications, pregnant women can safely fly up to 36 weeks gestation. Most airlines restrict travel in late pregnancy or may require a written confirmation from a physician.
Women who are 36 weeks pregnant or less may travel on the ship. Women who are between 36 and 38 weeks pregnant at the time of travel may only travel on Spirit of Tasmania with written approval from their doctor. Women who are 38 weeks pregnant or more are not permitted to travel.