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An erection (clinically: penile erection or penile tumescence) is a physiological phenomenon in which the penis becomes firm, engorged, and enlarged. Penile erection is the result of a complex interaction of psychological, neural, vascular, and endocrine factors, and is often associated with sexual arousal, sexual attraction or libido, although erections can also be spontaneous.
The ischiocavernosus muscle (erectores penis or erector clitoridis in older texts) is a muscle just below the surface of the perineum, present in both men and women. [ 1 ] Structure
The dorsal nerve of the penis is the deepest of three divisions of the pudendal nerve; it accompanies the internal pudendal artery along the ramus of the ischium; it then runs forward along the margin of the inferior ramus of the pubis, between the superior and inferior layers of the fascia of the urogenital diaphragm.
“The nervous system plays a vital role in erectile function, so any damage or disruptions to the nerves involved can impair erectile function,” Dr. Jamin Brahmbhatt, a urologist and fellowship ...
Long-term alcohol abuse can lead to blunted libido, erectile dysfunction, and permanent nerve damage. Sensation should return to normal within about three months of quitting these substances, Dr ...
The cavernous nerves are post-ganglionic parasympathetic nerves that facilitate penile erection and clitoral erection. [1] They arise from cell bodies in the inferior hypogastric plexus where they receive the pre-ganglionic pelvic splanchnic nerves (S2-S4). In the penis, there are both lesser cavernous nerves and a greater cavernous nerve.
Penile erection is managed by two mechanisms: the reflex erection, which is achieved by directly touching the penile shaft, and the psychogenic erection, which is achieved by erotic or emotional stimuli. The former involves the peripheral nerves and the lower parts of the spinal cord, whereas the latter involves the limbic system of the brain ...
In females, it contributes to clitoral erection [4] and the contractions of orgasm, and closes the vagina. Rhythmic contractions of bulbospongiosus muscles during male orgasm This muscle serves to empty the canal of the urethra , after the bladder has expelled its contents; during the greater part of the act of urination its fibers are relaxed ...