[Solved] The internal lining of the heart consists of a smooth, delicate membrane called the exocardium. Condom: A thin sheath typically made from latex, worn on a man's penis during sexual activity for contraceptive purposes and to prevent the transmission of sexually transmitted infections. Sexual Orientation: A term that refers to whether a person is sexually and romantically attracted to others of the same sex, the opposite sex, or both sexes. Sexual Identity: An individual's personal sense of their own sexuality, including their sexual orientation, preferences, and roles; it is a complex interplay of biological, environmental, and psychological factors. Erotic Desires: Refers to sexual feelings and inclinations towards others or oneself.