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一、射精生理男性射精生理十分复杂。正常的射精活动有赖于精神、神经、内分泌和生殖器官解剖生理的完整性。男性正常的射精活动包括三个生理过程:泄精——精液排泄至后尿道口;射精——后尿道的精液达到一定量后经尿道外口射出体外;尿道内口闭合——射精的同时尿道内口闭合,以防精液逆流至膀胱。1.射精的高位中枢激起性欲的高位神经中枢位于下丘脑前叶,特别是内侧视索前区,海马和
First, the ejaculation physiology Male ejaculation physiology is very complicated. Normal ejaculation depends on the mental, neurological, endocrine and reproductive anatomy and physiology integrity. Male normal ejaculation activities include three physiological processes: excretion - semen excretion to the posterior urethra; ejaculation - urethra after the semen reaches a certain amount through the urethral orifice injection; urethral mouth closed - ejaculation at the same time the urethra Inner mouth closed to prevent the flow of semen back to the bladder. 1. ejaculation high central arousal central nervous center located in the hypothalamic anterior lobe, especially the medial optic nerve in front of the area, the hippocampus and