Question

In which of the following layers of the oviducts is lamina propria found?

• A. Muscularis
• B. Stratum functionalis
• C. Mucosa
• D. Serosa

Answer 1

The correct option is C Mucosa

Oviducts, also called utrine tubes or Fallopian tubes, are tubular structures that connect the ovaries to the uterus. It is composed of 3 layers- mucosa, muscularis and serosa.

The mucosa layer consists of epithelium (ciliated simple columnar cells and non-ciliated cells) and lamina propria.
The simple ciliated columnar epithelial cells help in the movement of the oocyte.
Lamina propria refers to a thin layer of connective tissues that are a part of the mucous membranes or the mucosa layer of the hollow organs of the body.

The muscularis is formed by smooth muscles. The thick circular ring of smooth muscles lies on the inside and the thin region of longitudinal smooth muscles lies on the outside. These also aid in the movement of the oocyte.

The outer layer of the oviduct is the serosa. This layer provides a partition between the internal organs and the abdominal cavity.

Stratum functionalis is an endometrial layer lining the cavity of the uterus and sloughs off during menstruation.