|Description:||This is a low power picture of the uterine horn from a sheep. The
endometrium has caruncles and glandular regions. The inner muscle layer
of the myometrium can be seen between the endometrium and the vascular
layer (stratum vasculare). The caruncles appear to be "bare" at low
magnification. It is covered by the surface epithelium and is rich in
fibrocytes and has an extensive blood supply (not obvious here). These
structures, found in ruminants, are sites of attachment of the maternal
(endometrail) placenta to the fetal placenta (cotyledons). PK1471.
Original mag. 5x. Masson trichrome. Uterus. Female Reproductive System.