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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.
An erection is the stiffening and rising of the penis, which occurs during sexual arousal, though it can also happen in non-sexual situations. Spontaneous erections frequently occur during adolescence due to friction with clothing, a full bladder or large intestine, hormone fluctuations, nervousness, and undressing in a nonsexual situation.
Erectile dysfunction (ED), also referred to as impotence, is a form of sexual dysfunction in males characterized by the persistent or recurring inability to achieve or maintain a penile erection with sufficient rigidity and duration for satisfactory sexual activity.
Penile penetration of the vagina with the glans of the penis touching the G-spot Well perfused labia and clitoral erection. Whether or not the clitoral glans is stimulated by the penis depends on the clitoris–urethral-meatus distance (CUMD) and on the positions and movements. Painting from the Kamasutra: Coitus with nipple stimulation
The most obvious response involved with sexual behaviour in males is penile erection. The use of the volume (or circumference) change during penile erection as a convenient measure of sexual arousal was first developed by Kurt Freund. [50] This measurement of blood flow to the male genitals is known as penile plethysmography.
An erection is the stiffening and rising of the penis, which occurs during sexual arousal, though it can also happen in non-sexual situations. During ejaculation , a series of muscular contractions delivers semen , containing male gametes known as sperm cells or spermatozoa , from the penis.
A corpus cavernosum penis (singular) (from Latin, characterised by "cavities/ hollows" [2] of the penis, pl.: corpora cavernosa) is one of a pair of sponge-like regions of erectile tissue, which contain most of the blood in the penis of several animals during an erection.
Clitoral erection (also known as clitoral tumescence or female erection) [1] [2] is a physiological phenomenon where the clitoris becomes enlarged and firm. Clitoral erection is the result of a complex interaction of psychological, neural, vascular, and endocrine factors, and is usually, though not exclusively, associated with sexual arousal .