CHANGES IN UTERINE AND OVARIAN BLOOD FLOW DURING THE OESTROUS CYCLE IN RATS

Abstract
SUMMARY: The rates of uterine and ovarian blood flow during the oestrous cycle in rats were measured using radioactive microspheres. Blood flow was highest in the ovaries and uteri during pro-oestrus and lowest during metoestrus. During pro-oestrus, mean ovarian blood flow was 676·2 ± 183·6 (s.d.) ml/min/100 g wet tissue and mean uterine blood flow was 249·7 ± 120·1 ml/min/100 g. During metoestrus mean ovarian blood flow was 117·4 ± 19·8 ml/ min/100 g and mean uterine blood flow was 38·5 ± 7·4 ml/min/100 g. In ovariectomized rats, uterine blood flow was 28·7 ± 10·5 ml/min/100 g.