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Romeo Emmanuel A. Valera posted an update in the group
Microscopic Photos of Reproductive System Tissue Slides 3 years, 11 months ago The cervix is part of the Female Reproductive System and it is the junction between the uterus and vagina. It lies at the base of the uterus and it also serves to protect it from bacterial infiltration. Additionally, it is also the site of an important epithelial transition.
The upper cervix (endocervix) is lined by a simple columnar epithelium which contains mucous-secreting cells. In contrast to this, the lower cervix (ectocervix) is lined by a stratified squamous epithelium.
The external os is the transition point between these two epithelia.
Also, do take note of how the underlying layers of the cervix are composed mainly of collagenous and elastic connective tissue, instead of smooth muscle fibers.
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Cervix. (n.d.). Yale. Retrieved May 19, 2022, from http://medcell.med.yale.edu/histology/female_reproductive_system_lab/cervix.php