Basic Information
Chinese name: Creampie
Aliases: Creampie, Creampie
Foreign name: ejaculation
Scope of application: mating
ejaculation step
Ejaculation is the reflex action of male animals to eject semen during sex. In humans, ejaculation ejaculates through a series of coordinated actions of various parts of the reproductive system that eject semen from the penis. Including the two-step spinal reflex, the primary center is in the lumbosacral spinal cord, and its sensory impulses are afferent from the tactile receptors on the glans of the penis.
The first step is the contraction of the smooth muscle of the vas deferens and seminal vesicles caused by sympathetic efferent impulses, thereby transporting the semen from the vas deferens and seminal vesicles to the urethra;
The second step relies on the outgoing impulse of the pudendal nerve to contract the striated muscle at the root of the corpus cavernosum, thereby ejecting the semen from the urethra. The excitation of the higher parts of the brain also acts on the erection center and ejaculation center of the spinal cord through the descending pathway. Normal human excitatory stimuli from various senses affect spinal reflex activity through the brain.
ejaculation process
Ejaculation is a complex process that includes erection, ejaculation, ejaculation, and orgasm. The erection is due to the swelling and hardening of the penis, and its primary innervation comes from the sacral plexus and the splanchnic or erectile nerves of the pelvis. Ejaculation involves collecting semen before ejaculation and transporting it to the prostatic portion of the urethra, which becomes a semen reservoir with the closure of the bladder neck and distal urethral sphincter. this induces ejaculation, the rhythmic ejaculation of semen through the urethra, in which the involvement of the skeletal muscles of the perineum is essential. Orgasm is a brain-involved, usually pleasurable event that is closely linked to ejaculation.
The neurophysiology of ejaculation is only partially understood. Studies have shown that the dopaminergic system promotes ejaculation while the serotonin-activated system inhibits ejaculation. The main neural mechanism of ejaculation is the innervation of the body, but also includes the pudendal nerves and fibers from the autonomic nervous system. The autonomic branch of the parasympathetic nerve primarily controls erectile function while the sympathetic and somatic branches control primarily firing and ejaculation.
