Sex Education – Letter E

Egg – The female reproductive cell, also known as the ovum, which when united with a sperm, can become fertile and create life.

Ejaculation – The expulsion of semen from the penis. Semen most often spurts out in conjunction with orgasmic contractions.

Ejaculatory ducts – Ducts in the penile shaft that carry sperm and seminal fluid from the prostate through the urethra.

Ejaculatory inevitability – The point at which a man can no longer control the fact that he is about to ejaculate. Also known as the point of no return.

Epididymis – Coiled tubelike structures located on the side of the testicles that carry newly developed sperm.

Episiotomy – A surgical incision through a woman’s perineum, performed to enlarge the vaginal opening for delivery of a baby.

Erection – Natural enlargement of the penis when blood flowing to the area causes it to become engorged.

Erogenous zones – Areas of the body that respond to sexual stimulation.

Erotica – Any sexually explicit writing, or visual images such as photographs, drawings, and films that arouse sexual interest or are used to enhance a sexual experience. The term usually refers to material that also contains loving interaction.

Estrogen – Hormone that regulates secondary sexual characteristics in women and regulate the monthly cycle.