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Erectile tissue is tissue in the body with numerous vascular spaces, or cavernous tissue, that may become engorged with blood. [ 1 ] [ 2 ] However, tissue that is devoid of or otherwise lacking erectile tissue (such as the labia minora , vestibule , vagina and urethra ) may also be described as engorging with blood, often with regard to sexual ...
Blood can leave the erectile tissue only through a drainage system of veins around the outside wall of the corpus cavernosum. The expanding spongy tissue presses against a surrounding dense tissue (tunica albuginea) constricting these veins, preventing blood from leaving. The penis becomes rigid as a result.
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 glans penis is a body of spongy erectile tissue that is moulded on the rounded ends of the two corpora cavernosa penis, [9] extending farther on their upper than on their lower surfaces. It is the expanded cap of the corpus spongiosum , [ 10 ] a sponge-like region that surrounds the male urethra within the penis maintaining it as a viable ...
This means that in the event of a rival male's sperm occupying the reproductive tract of a female, the human penis is able to displace the rival sperm, replacing it with his own. [42] Semen displacement has two main benefits for a male. Firstly, by displacing a rival male's sperm, the risk of the rival sperm fertilising the egg is reduced. [43]
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In human male anatomy, the radix (/ r eɪ. d ɪ k s /) [1] or root of the penis is the internal and most proximal portion of the human penis that lies in the perineum.Unlike the pendulous body of the penis, which is suspended from the pubic symphysis, the root is attached to the pubic arch of the pelvis and is not visible externally.
3. Urinate. Fun fact: A full bladder pushes against the sacral nerve, which causes an erection. This is why men wake up with boners (aka morning wood).