[Solved] What bones form the forearm (antebrachium)? A)carpals and metacarpals B)tibia and fibula C)ulna and radius D)scapula and humerus Sexual Activity: Engaging in various forms of sexual intercourse or other sexual behaviors typically involving erotic practices. Psychiatric Association: A psychiatric association is a professional organization for psychiatrists and mental health professionals, focused on advancing psychiatric research, education, and clinical practice. Sexual Orientation: A persistent pattern of emotional, romantic, or sexual attraction toward men, women, both genders, no gender, or a different gender. Erectile Dysfunction: A medical condition where a man is unable to achieve or maintain an erection sufficient for sexual activity.