Mucosa is made up of long, thin folds that stick out into the lumen. The oviduct is easy to spot because it has these folds.

The simple columnar epithelium is made up of two types of cells:

Ciliated cells: The cilia wave toward the uterus to help move the ovum or zygote to the uterus after it has been fertilized.

Peg cells make fluid that feeds the ovum or zygote after it has been fertilized.

Lamina propria is the connective tissue that holds up the epithelium and has nerves and blood vessels in it.

Muscularis is made up of an inner circular or spiral layer and an outer longitudinal layer. The ovum or fertilized zygote is moved to the uterus by the peristaltic contractions of the longitudinal layer.

Serosa is made up of a simple cuboidal epithelium (or mesothelium) and a thin layer of connective tissue that holds it up.

Unlike many tubular tissues, the oviducts’ epithelium and other glands do not have goblet cells or glands.