TY - JOUR
AU - Fernström, I.
AB -  BY U. BORELL and 1. FERNSTROM The existence of a sphincter at the isthmus uteri has long been suspected, but its presence has not yet been conclusively proved either macroscopically or microscopically (S t i e v e 1927; S c h r o d e r 1930; h s p l u n d 1952). Measurements of the width of the isthmus on hysterograms have shown that during the secretory phase the isthmus is narrower than during the proliferative phase ( P a l m e r and L i e s s e 1946; A s p l u n d 1952). The view has been expressed that a sphincteric mechanism controls the changes in the width of the isthmus. W e s t m a n (1942)insufflated gas directly into human uterus at laparotomy, using a fine cannula which was inserted through the wall of the fundus and was connected with an insufflation apparatus. At a certain pressure the gas passed into the vagina. W e s t rn a n came to the conclusion that a functional sphincter existed at the junction of cervix and corpus uteri and that this sphincter contracted rhythmically. In 
TI - The Sphincter Mechanism of the Isthmus Uteri: A Radiological Study
JF - Acta Obstetricia Et Gynecologica Scandinavica
DO - 10.3109/00016345309157559
DA - 1953-01-01
UR - https://www.deepdyve.com/lp/wiley/the-sphincter-mechanism-of-the-isthmus-uteri-a-radiological-study-Xl5D7r6sNf
SP - 7
VL - 32
IS - 1
DP - DeepDyve
ER -