Small Arteries of the Myometrium and Endometrium of the Uterus

This diagram exemplifies the position of the arteries in the epithelial and muscular layers of the uterus. The arcuate artery lies at the base of the image base within the myometrium.  It gives rise to the radial  artery that also courses through the myometrium.  When  the radial artery leaves the myometrium  it becomes the straight artery that terminates in the spiral arteries.  The spiral arteries run in the stratum functionalis, the straight arteries run in the stratum basalis, while the radial arteries and the arcuate arteries run in the muscularis.

Description

This diagram exemplifies the position of the arteries in the epithelial and muscular layers of the uterus. The arcuate artery lies at the base of the image base within the myometrium.  It gives rise to the radial  artery that also courses through the myometrium.  When  the radial artery leaves the myometrium  it becomes the straight artery that terminates in the spiral arteries.  The spiral arteries run in the stratum functionalis, the straight arteries run in the stratum basalis, while the radial arteries and the arcuate arteries run in the muscularis.