Ejaculation may feel like a glorious mess, as uncontrollable as an avalanche or a runaway train.
Ejaculation is the endpoint of a process that begins with a touch. Skin covering the shaft and glans of the penis is filled with nerve endings sensitive to pressure and vibration. More touching further increases sensitivity, in a positive feedback teenanlsex that can build to a show-stopping involuntary eruption. When enough stimulation trips arousal over into orgasm, it also triggers a storm of activity in the three ejaculatory centers deep in the brain.
These areas, in the hypothalamus and the midbrain, ejaculating off a pattern of impulses to coordinate dick release of sperm from the testes, the creation dick semen, and tie the final contractions tossing semen out of the body to the feelings of orgasm.
Ejaculating Penis Gif GIFs
Before the spurting can begin, sperm need to be brought out ejaculating storage and put in position. Instead, smooth muscles in the walls of male reproductive organs contract in nude skinny cameltoe coordinated wave. The conveyor-belt like movement takes concentrated masses of sperm from the epididymis where they matured and dumps them into the urethra at the base of the penis.
Along the way, they pass by a series of glands like the seminal vesicles and the prostate which each squeeze out specialized fluids that dilute the sperm and create the complex goo we call semen. Semen accumulates at the back end of the penis, inside the base of an erectile structure called the corpus spongiosum or in older papers, the corpus cavernosum urethrae.
The corpus spongiosum is the odd man out of the three erectile structures inside the penis: Its base also swells slightly, forming a structure called the urethral bulb.
The urethra plunges into the middle of dick bulb in a sort of turducken of ejaculating tissues: