isthmus of uterus

isthmus /isth·mus/ (is´mus) pl. isth´mi   a narrow connection between two larger bodies or parts.isth´mian

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isthmus of auditory tube , isthmus of eustachian tube the narrowest part of the auditory tube at the junction of its bony and cartilaginous parts.

isthmus of fauces  the constricted aperture between the cavity of the mouth and the pharynx.

isthmus of rhombencephalon  the narrow segment of the fetal brain, forming the plane of separation between the rhombencephalon and cerebrum.

isthmus of thyroid gland  the band of tissue joining the lobes of the thyroid gland.

isthmus of uterine tube  the narrower, thicker-walled portion of the uterine tube closest to the uterus.

isthmus of uterus  the constricted part of the uterus between the cervix and the body of the uterus.

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isthmus of uterus

n.

An elongated narrow part of the uterus at the junction of the body of the uterus and the cervix.