Male ejaculation is the process of sperm in the vas deferens being ejected through the nerve excitement reflex area after the penis is stimulated. The nerves are centered on the corpus cavernosum of the penis, urethra, adrenal hormones, and vas deferens. The corpus cavernosum of the penis is opened through nerve stimulation, and it does not need to pass through the seminal vesicle. For the operation process of male ejaculation, you can learn about the content introduced in this article, and then you can analyze it yourself when you encounter ejaculation difficulties. Ejaculation center - During the ejaculation process, the corpus cavernosum of the penis is a part of the erection mechanism, while the urethra and corpus cavernosum are related to ejaculation and sexual orgasm. During the male sexual arousal period, the erect penis stretches the urethra, and the originally curved tube becomes straight. The transverse diameter of the urethra can exceed 2 times the original diameter, and the bulbar part of the urethra is 3 times larger than the cavity in the calm period, and the urethral opening blooms with stimulation. During sexual intercourse, the sympathetic nerves release a large amount of norepinephrine, which speeds up the transport of sperm from the tail of the epididymis to the vas deferens. The vas deferens and the ejaculatory duct are channels for transporting sperm, and the vas deferens is also a treasure house for sperm. Under the action of norepinephrine released by the sympathetic nerves, the epididymis, vas deferens, and ejaculatory duct contract in a coordinated manner, especially with a strong rhythmic contraction, driving semen into the posterior urethra. The vas deferens fluid can be directly injected into the posterior urethra without entering the seminal vesicle. Under the control and control of the sympathetic nerves, the smooth muscle of the seminal vesicle contracts peristaltically, and discharges its secretions into the posterior urethra. Sympathetic nerve gratitude can cause the prostate smooth muscle to contract, prostate fluid to be excreted, bladder sphincter to contract, semen to be discharged into the urethra, and bladder neck to be refractory closed, which has the effect of preventing semen from entering the bladder in reverse, and preventing urine from entering the urethra. Now, with the coordinated participation of the large joint muscle group of the perineum, semen is radiated out of the body through the urethra. At the same time, the accompanying urethral bulb contracts rhythmically, producing a euphoric aftertaste. It starts with 2 to 3 particularly violent contractions, followed by several weaker contractions. The degree of euphoria and orgasm varies depending on the soul mode and the intensity and time of sexual gratitude. |
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