Samenerguss

Samenerguss is the German term for the ejaculation of semen from the penis during sexual climax. In medical contexts, the standard term is ejaculation, while Samenerguss is commonly used in everyday German language.

Physiology and process: Ejaculation results from a coordinated sequence of events triggered by sexual arousal. First, emission moves semen from the seminal glands and prostate into the posterior part of the urethra. Then rhythmic pelvic floor contractions propel semen through the urethra and out of the penis. The ejaculation reflex is primarily mediated by the autonomic nervous system, with coordinated sympathetic and somatic pathways, and involves spinal reflexes that link arousal, orgasm, and expulsion.

Composition and typical values: Semen is a mixture of spermatozoa and secretions from the seminal vesicles, prostate, and bulbourethral glands. Typical semen volume is about 1.5 to 5 milliliters per ejaculation. Sperm concentration commonly ranges from roughly 15 to 150 million sperm per milliliter, with motility and morphology varying among individuals. Semen is usually alkaline, with a pH around 7.2 to 7.8, which helps sperm survive in the female reproductive tract.

Health and clinical considerations: Normal ejaculation varies widely, and patterns differ by age and health. Disorders include premature ejaculation, delayed ejaculation, anejaculation, or retrograde ejaculation. Fertility issues, medication effects (such as certain antidepressants), and nerve or hormonal conditions can influence ejaculation. Semen analysis is a common diagnostic tool in evaluating male fertility and reproductive health.

Terminology: In German, Samenerguss is a common everyday term for ejaculation; in medical German, Ejakulation is often used. The concept is a standard aspect of male sexual and reproductive physiology.