A 24-year-old woman recently

found out she was pregnant, probably in her 5th or 6th week of pregnancy. She

suddenly feels a sharp pain in her lower abdomen and the pain steadily worsens

over a period of minutes, and she begins to develop symptoms of shock. She is

immediately taken to hospital where it is found that her fallopian tube has

ruptured as a result of an ectopic pregnancy. This condition is very serious

and threatens a woman´s life. The patient is immediately operated and the

ruptured fallopian tube is completely removed. What is the outer surface of the

fallopian tube covered with?