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Oviduct: intramural portion
The intramural oviduct lies within the uterine wall, surrounded by the uterine musculature. In the intramural oviduct, the folds of the mucosa are reduced to just a few ridges; secretory cells outnumber ciliated cells, and the muscularis externa is thick. 40x

Lumen
The intramural oviduct lies within the uterine wall, surrounded by the uterine musculature. In the intramural oviduct, the folds of the mucosa are reduced to just a few ridges; secretory cells outnumber ciliated cells, and the muscularis externa is thick. 40x

Mucosa
The intramural oviduct lies within the uterine wall, surrounded by the uterine musculature. In the intramural oviduct, the folds of the mucosa are reduced to just a few ridges; secretory cells outnumber ciliated cells, and the muscularis externa is thick. 40x

Muscularis externa
The intramural oviduct lies within the uterine wall, surrounded by the uterine musculature. In the intramural oviduct, the folds of the mucosa are reduced to just a few ridges; secretory cells outnumber ciliated cells, and the muscularis externa is thick. 40x

Uterine musculature
The intramural oviduct lies within the uterine wall, surrounded by the uterine musculature. In the intramural oviduct, the folds of the mucosa are reduced to just a few ridges; secretory cells outnumber ciliated cells, and the muscularis externa is thick. 40x