The ampulla is the longest and widest part of the uterine tube, between the infundibulum and the narrow isthmus. Its lining has many complex folds.
| Location | Lateral two-thirds of the uterine tube, curving over the ovary |
|---|---|
| Parts |
|
| Nerve Supply | Ovarian plexus (T10-T11) |
| Blood Supply | Ovarian artery; Ovarian branch of the uterine artery; Tubal branch of the uterine artery |
| Venous drainage |
|
| Lymphatic drainage |
|
Usual site of fertilisation of the egg by sperm.
It is the most common site of ectopic pregnancy, which can rupture and cause life-threatening internal bleeding. A pregnancy test with pelvic pain or bleeding needs urgent assessment.
Implantation of an embryo in the ampulla, which may rupture and bleed.
Infection of the tube, often from sexually transmitted organisms.
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