ejaculatory

Ejaculatory is an adjective relating to ejaculation, the process by which semen is expelled from the male reproductive tract at orgasm. It is used in medical, anatomical, and physiological contexts to describe structures, fluids, or processes involved in ejaculation.

The ejaculatory ducts are a pair of ducts formed by the junction of the vas deferens and the ducts of the seminal vesicles. They pass through the prostate and drain into the prostatic portion of the urethra. During ejaculation, these ducts release sperm and seminal fluids into the urethra. The term can also describe the fluids emitted as part of semen.

Ejaculation comprises emission and expulsion. The emission phase moves sperm and seminal fluid into the urethra; expulsion propels semen through the urethra to exit the body. The emission phase is largely controlled by sympathetic nerves; expulsion involves pelvic floor and perineal muscle contractions. The timing and volume can vary among individuals.

Disorders of ejaculation include premature ejaculation (brief interval to ejaculation), delayed ejaculation (difficulty achieving ejaculation), and anejaculation (failure to ejaculate). Obstruction or injury to the ejaculatory ducts can impair semen delivery and fertility.

Etymology: From Latin ejaculare meaning to throw out. In scientific writing, "ejaculatory" is used to describe anything pertaining to ejaculation, such as ejaculatory ducts or ejaculation reflex.