Medical Terminology Simplified

Implantation of the fertilized ovum outside of the uterine cavity, such as a fallopian

tube, an ovary, the abdomen, or the cervix uteri (See Fig. 8–14.)

Ectopic pregnancy occurs in approximately 1% of pregnancies, most commonly in the

oviducts (tubal pregnancy). Some types of ectopic pregnancies include ovarian, intersti-

tial, and isthmic.

Presence of endometrial tissue outside the uterine cavity, such as the pelvis or ab-

domen (See Fig. 8–15.)

Additional Medical Terms • CHAPTER 8 367

ectopic pregnancy

ĕk-TŎP-ik

Uterus

Ovary

Villi invading

Amnion Chorion tubule wall Fetus

Lumen of
fallopian tube

Isthmic Ampullar

Infundibular

Fimbrial

Ovarian

Cervical

Abdominal

Interstitial

Intramural

Intraligamentous

Figure 8-14(A) Tubal pregnancy. (B)Other sites of ectopic pregnancy.

endometriosis

ĕn-dō-mē-trē-Ō-sĭs

endo: in, within

metri: uterus (womb)

-osis: abnormal condi-

tion; increase

(used primarily

with blood cells)

A

B