Skip to main content

Histology of Female Reproductive System, Vaginal

Histology of  Female reproductive system / Vagina

  •         Ovaries
  •         Oviduct
  •         Uterus
  •         Vaginal
  •         Mammary gland

Vaginal Histology of  Female reproductive system Infographic Diagram

Vaginal Histology Catalog

The vaginal wall is composed of mucosa, muscularis, and adventitia. The vaginal mucosa forms many horizontal folds, and the mucosal epithelium is a non-keratinized stratified flat epithelium, which is thicker. 
Generally, although the lower layer cells contain transparent keratin particles, they do not show keratinization. 

Vaginal Epithelium

In patients with vaginal prolapse, keratinization may occur in the local epithelium. The shedding and renewal of vaginal epithelium and certain periodic changes are affected by ovarian hormones. 

Estrogen promotes thickening of the vaginal epithelium and allows cells to synthesize large amounts of glycogen. The vaginal epithelium is thickest in the late period of hyperplasia of the menstrual cycle. 
Representation of Vaginal epithelial cells

Vaginal epithelial cells shed significantly

When the level of estrogen in the late endometrial secretion decreases, the vaginal epithelial cells shed significantly and the epithelium becomes thinner. 

Clinically, the smear of vaginal epithelial cells can be observed to understand the endocrine function of the ovary.

In addition to vaginal epithelial cells, there are exfoliated cells in the cervix and endometrium, so vaginal smear examination is also a method for diagnosing genital tract tumors
After the vaginal epithelial cells are shed, the intracellular glycogen is decomposed into lactic acid by the lactobacilli in the vagina, so that the vaginal secretions remain acidic and have a certain antibacterial effect. 

After menopause, the mucosa of the obstructive channel shrinks, the epithelium becomes thinner, the number of shed cells is less, the pH of the vaginal fluid rises, and the bacteria are prone to multiply and cause vaginitis. 

The superficial layer of the mucosal lamina propria is denser connective tissue, rich in capillaries and elastic fibers, and the deep layer is rich in venous plexus.

Adult vaginal mucosa

The vaginal muscle layer is smooth muscle, which is weak, and the muscle bundles are spiral, arranged in a lattice, and the elastic fibers in the connective tissue are rich. 

This structural feature of the vaginal muscle layer makes the vaginal wall easy to expand. There is a circular sphincter composed of skeletal muscle outside the vagina, called urethral vaginal sphincter. The outer membrane is dense connective tissue rich in elastic fibers.


Author's Bio

Doctor Shawna Reason, Virologist
Dr. Shawna Reason
Name: Shawna Reason

Education: MBBS, MD

Occupation: Medical Doctor / Virologist 

Specialization: Medical Science, Micro Biology / Virology, Natural Treatment

Experience: 15 Years as a Medical Practitioner

About Me | Linkedin | Quora Profile | Medium Profile | Twitter


Popular posts from this blog

Microbiology FAQs. Course and Journal

Microbiology (Academic Subject and Medical Department) Meaning of Microbiology : Microbiology is one of the branches of biology. It is to study the morphological structure, growth and reproduction of various micro-organisms (bacteria, actinomycetes, fungi, viruses, Rickettsia, mycoplasma, chlamydia, spirochete protozoa and single-cell algae) at the molecular, cellular or population level. It is also a name of medical department that studies and applies the subject. It also studies physiological metabolism, genetic variation, ecological distribution and taxonomic evolution and other basic laws of life activities, and apply it to science in the fields of industrial fermentation, medical hygiene and bioengineering. Microbiology is a science that studies the laws of life activities and biological characteristics of various tiny organisms.   Discipline Name:     Microbiology Subject:     Biology Definition:     One of the branches of biology studying micro organisms

Can Dolphins Live in Fresh Water?

Is it Possible for Dolphins to Live in Fresh Water? We are very familiar with dolphins and fin-less porpoises, but dolphins and fin-less porpoises are both in the same family.  Why is there a difference between finless porpoise and porpoise?  Can dolphins follow the estuary and live in the big rivers?   Let me start with the answer: a small part can, the vast majority cannot. The reason is simply three sentences: can’t swim, eat, and live.   In detail, it may be longer and boring. You must be mentally prepared.   At present, whether it is fossil evidence or molecular biology research, it is still believed that cetaceans have a single origin, that is, the current whales and dolphins evolved from the same ancestor.  Of course, various whales and dolphins have embarked on their own different evolutionary paths. To this day, more than 80 kinds of whales and dolphins with completely different body shapes, habits and distribution areas have been evolved.  From the physical stru

Ayurveda Ayurvedic Treatment Therapy Science

What is Ayurveda? Indian Ayurvedic Science and Therapy : Ayurveda is therapy, the science of life and longevity. It is an ancient Indian healing system that is widely popular around the world. It originated from the Atharva Veda in the Vedas. The Vedas is a very huge system of knowledge that is passed directly from God to great saints. The Vedas is also considered to be the manifestation of God himself. This knowledge is revealed every time it is created, so Ayurveda has an eternal relationship with God. Ayurveda's written records have a history of more than 5,000 years. It existed for thousands of years before the written records. It is the only oldest comprehensive health care system in the world, and its herbal system is still practiced to this day. This is referable as ayurvedic system. Maharshi Sushruta is said to have acquired Ayurvedic's original knowledge from the Brahma. Ayurveda's most important classics are "SushrutaSamhita", "Charak Samh