- Raphe
A raphe has different uses:
In science
Pronounced "RAY-fee" IPA| ['ɹeɪ·fɪ] ), it is most commonly used when describing
diatoms ,seeds , andanimal anatomy .In the field of anatomy, the term refers to a continuous ridge of tissue. There are several different significant raphes:
* The
perineal raphe extends from theanus , through the mid-line of thescrotum (scrotal raphe) and upwards through the posterior mid-line aspect of thepenis (penile raphe).
* Thebuccal raphe which is on thecheek and evidence of the fusion of themaxillary and mandibularprocesses .
* Thelingual raphe on thetongue . Obvious physical evidence of the lingual raphe includes thefrenulum (also called thefrenum ), or band ofmucous membrane that is visible under the tongue attaching it to the floor of the mouth. If this raphe is too tight at birth, movement of the tongue is restricted and the child is said to be "tongue tied".
* Thepalatine raphe on the roof of the mouth (orpalate ). Incomplete fusion of the palatine raphe results in acongenital defect known ascleft palate .
* Thepharyngeal raphe is near the pharyngeal constrictors.
* Theraphe nucleus is a moderate-size cluster of nuclei found in the brain stem which releasesserotonin to the rest of the brain. Selective serotonin reuptake inhibitor (SSRI) antidepressants are believed to act at these nuclei.
* Theanococcygeal raphe
* Thepterygomandibular raphe
* Thelateral palpebral raphe In linguistics
*A rafe (or raphe) is a diacritic that was used in Hebrew to indicate a softer form of a consonant.
External links
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