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The perineal raphe is a visible line or ridge of tissue on the body that extends from the anus through the perineum to the scrotum (male) or the vulva (female). It is found in both males and females, arises from the fusion of the urogenital folds, and is visible running medial through anteroposterior, to the anus where it resolves in a small knot of skin of varying size.
The penile raphe is a visible line or ridge of tissue that runs on the ventral (urethral) side of the human penis beginning from the base of the shaft and ending in the prepuce between the penile frenulum. [1] [2] The line is typically darker than the rest of the shaft skin, even though its shape and pigmentation may vary greatly among males. [1]
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The human perineum is between the anus and scrotum in the male or between the anus and vulva in the female. [2] The perineum is the region of the body between the pubic symphysis (pubic arch) and the coccyx (tail bone), including the perineal body and surrounding structures. The perineal raphe is visible and pronounced to varying degrees.
Muscles underlying the penis and perineum. The penile raphe is the visible ridge between the lateral halves of the penis, found on the ventral or underside of the penis, running from the meatus and continuing as the perineal raphe across the scrotum and the perineum (area between scrotum and anus). [10]
Raphe (/ ˈ r eɪ f i / RAY-fee; from Ancient Greek: ῥαφή, romanized: rhaphḗ, lit. 'seam'; [ 1 ] pl. : raphae or raphes ) has several different meanings in science. In botany and planktology , it is commonly used when describing a seam or ridge on diatoms or seeds .
The perineal raphe is a small, vertical ridge of skin that expands from the anus and runs through the middle of the scrotum front to back. The scrotum is also a distention of the perineum and carries some abdominal tissues into its cavity including the testicular artery , testicular vein , and pampiniform plexus .
The term median raphe can refer to one of four different anatomical structures: The pharyngeal raphe; The palatine raphe; The penile raphe; The perineal raphe, also known as the "median r. of perineum"