prolapse /pro·lapse/ (pro´laps)
prolapse [pro´laps]
1. ptosis; the falling down, or downward displacement, of a part or viscus.
2. to undergo such displacement.
prolapse of the cord protrusion of the umbilical cord ahead of the presenting part of the fetus in labor.
prolapse of the iris protrusion of the iris through a wound in the cornea.
Morgagni's prolapse chronic inflammatory hyperplasia of the mucosa and submucosa of the sacculus laryngis.
rectal prolapse , prolapse of rectum protrusion of the rectal mucous membrane through the anus.
prolapse of uterus downward displacement of the uterus so that the cervix is within the vaginal orifice (first-degree p.), the cervix is outside the orifice (second-degree p.), or the entire uterus is outside the orifice (third-degree p.) .
prolapse [pro´laps]
1. the falling down or downward displacement of a part or viscus; called also procidentia and ptosis.
2. to undergo such displacement.
prolapse of cord protrusion of the umbilical cord ahead of the presenting part of the fetus in labor. 
Variations of prolapsed umbilical cord. From McKinney et al., 2000.
prolapse of the iris protrusion of the iris through a wound in the cornea.
mitral valve prolapse see mitral valve prolapse.
rectal prolapse (prolapse of rectum) protrusion of the rectal mucous membrane through the anus.
prolapse of uterus downward displacement of the uterus so that the cervix is within the vaginal orifice (first-degree prolapse), the cervix is outside the orifice (second-degree prolapse), or the entire uterus is outside the orifice (third-degree prolapse).
iris, prolapse of the
Protrusion of a portion of the iris into a corneal wound. It results from either trauma, a severe corneal ulcer or an operation. In some cases an anterior synechia may develop as the iris remains fixed in the wound by scar tissue.
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