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Related to plicae: Peyer's patches, Kerckring


See plica.


(pli'ka) (pli'ke?, se?) plural.plicae [L. plica, a fold]
A fold. See: fold

circular plica

One of the transverse folds of the mucosa and submucosa of the small intestine. Collectively they resemble accordion pleats, do not disappear with distention of the intestine, and increase the surface area for absorption. See: circular folds

epiglottic plica

One of three folds of mucosa between the tongue and the epiglottis.

lacrimal plica

A mucosal fold at the lower orifice of the nasolacrimal duct.
Synonym: Hasner valve; Huschke valve

palmate plica

A radiating fold in the uterine mucosa on the anterior and posterior walls of the cervical canal.

semilunar plica of the colon

The transverse fold of mucosa of the large intestine lying between sacculations.

semilunar plica of the conjunctiva

The mucosal fold at the inner canthus of the eye.

synovial plica

A fold of synovial membrane that projects into a joint cavity.

transverse plica of the rectum

One of the mucosal folds in the rectum.
References in periodicals archive ?
Dermal plicae included those anterior and posterior to the lateral-line pores.
Meristic characters Among meristic characters of specimens identified genetically and with a complete suite of morphological characters, only counts of total gill rakers, lateral-line pores, dermal plicae, and pectoralfin rays met variance assumptions necessary to conduct an ANCOVA (Table 5).
The gill plicae are formed by a variable number of ordinary filaments and principal filaments in the depressions between adjacent plicae (Figs.
Shell elongate, equivalved, dorsal and ventral margins subparallel; beaks rise above dorsal margin, tightly incurved, prosogyrate; posterior margin more broadly curved than anterior margin; greatest length below midheight, greatest width anterior of midlength; lunule and escutcheon present; valve surface with numerous broad, comarginal, rounded plicae commonly becoming coarser ventrally; some plicae bifurcate posteriorly; muscle scars and hinge not observed.
Elongate, equivalved shell; dorsal and ventral margins subparallel; anterior and posterior margins nearly equally convex; beaks extend above dorsal margin, located approximately one-fourth length from anterior margin; surface with numerous comarginal plicae with finer growth lines between plicae.
Plicae were scored as absent if they did not appear to arise independently of underlying substratum topology.
There were mild, focal aggregations of hemocytes located in the interlamellar junctions and the hemolymph sinuses of plicae and ordinary filaments of the gill of particular oysters (Fig.
Large accumulations of hemocytes were observed in the interlamellar junctions and hemolymph sinuses of plicae and ordinary filaments of the gill.