raphe

raphe /ra·phe/ (ra´fe) pl. ra´phae   a seam; the line of union of the halves of various symmetrical parts.

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raphe of penis  a narrow dark streak or ridge continuous posteriorly with the raphe of scrotum and extending forward along the midline on the underside of the penis.

perineal raphe  a ridge along the median line of the perineum that runs forward from the anus; in the male, it is continuous with the raphe of scrotum.

raphe of scrotum  a ridge along the surface of the scrotum in the median line, continuous with the perineal raphe and the raphe of penis.

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ra·phe or rha·phe (rf)

n. pl. ra·phae (-f)

A seamlike line or ridge between two similar parts of a body organ, as in the scrotum.

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raphe

[rā′fē]

Etymology: Gk, rhaphe, seam

a crease, ridge, or seam of the halves of various symmetric parts, such as the abdominal raphe of the linea alba or the raphe penis, which appears as a narrow dark streak on the inferior surface of the penis. Also spelled rhaphe.

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raphe (ra´fe),

n (
pl raphae) a crease or ridge that divides an organ in half.

n the ridge of oral mucosa that marks the median line of the hard palate and the median palatine suture between the two palatal shelves to form the secondary palate embryonically.

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raphe

a seam; line of union of the halves of various symmetrical parts.

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abdominal raphe

linea alba.

raphe nuclei

small group of serotenergic cells in the midline of the brainstem; may be involved in the initiation of sleep.