What is the name of the external male organ used for urination and sexual intercourse?

The correct answer is the penis, which serves dual functions in the male reproductive system. It is the external organ responsible for both urination and sexual intercourse.

The penis is made up of erectile tissue that allows it to become engorged with blood during sexual arousal, enabling it to facilitate intercourse. Additionally, it houses the urethra, which is the duct that carries urine from the bladder as well as semen from the reproductive system to the outside of the body. This dual role is crucial for male reproductive and urinary functions.

In contrast, the clitoris is a female organ primarily associated with sexual arousal, the urethra is a tube that carries urine (and semen in males) but is not an external organ, and the vulva refers to the external female genitalia, which is not related to male sexual or urinary functions. Thus, the penis distinctly fulfills the requirements set by the question.