crest

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crest

 [krest]
a projection, or projecting structure or ridge, especially one surmounting a bone or its border.
alveolar crest alveolar ridge.
ampullar crest (ampullary crest) the most prominent part of a localized thickening of the membrane that lines the ampullae of the semicircular ducts, covered with neuroepithelium containing endings of the vestibular nerve.
dental crest the maxillary ridge passing along the alveolar processes of the fetal maxillary bones.
iliac crest the thickened, expanded upper border of the ilium.

CREST

(krest),
[TA] Acronym for calcinosis, Raynaud phenomenon, esophageal motility disorders, sclerodactyly, and telangiectasia. See: CREST syndrome.

crest

(krest), [TA]
1. A ridge, especially a bony ridge.
See also: crista.
2. The ridge of the neck of a male animal, especially of a stallion or bull.
3. Feathers on the top of a bird's head, or fin rays on the top of a fish's head.
Synonym(s): crista [TA]
[L. crista]

crest

(krest) a projection, or projecting structure or ridge, especially one surmounting a bone or its border.
ampullar crest  the most prominent part of a localized thickening of the membrane lining the ampullae of the semicircular ducts.
frontal crest  a median ridge on the internal surface of the frontal bone.
iliac crest  the thickened, expanded upper border of the ilium.
intertrochanteric crest  a ridge on the posterior femur connecting the greater with the lesser trochanter.
lacrimal crest, anterior  the lateral margin of the groove on the posterior border of the frontal process of the maxilla.
lacrimal crest, posterior  a vertical ridge dividing the lateral or orbital surface of the lacrimal bone into two parts.
nasal crest 
1. (of maxilla) a ridge, raised along the medial border of the palatine process of the maxilla, with which the vomer articulates.
2. (of palatine) a thick ridge projecting superiorly from the horizontal plate of the palatine bone and articulating with the posterior part of the vomer.
neural crest  a cellular band dorsolateral to the embryonic neural tube that gives origin to the spinal ganglia and other structures.
occipital crest, external  a ridge sometimes extending on the external surface of the occipital bone from the external protuberance toward the foramen magnum.
occipital crest, internal  a median ridge on the internal surface of the occipital bone, extending from the midpoint of the cruciform eminence toward the foramen magnum.
palatine crest  a transverse ridge sometimes seen on the inferior surface of the horizontal plate of the palatine bone.
pubic crest  the thick, rough anterior border of the body of the pubic bone.
sacral crest  any of various ridges or tubercles on the dorsal surface of the sacrum, named for their location as median or as lateral or medial (relative to the dorsal sacral foramina); used alone it usually denotes the median sacral crest.
seminal crest  see under colliculus.
sphenoidal crest  a median ridge on the anterior surface of the body of the sphenoid bone, articulating with the ethmoid bone.
supramastoid crest  the superior border of the posterior root of the zygomatic process of the temporal bone.
supraventricular crest  a ridge on the inner wall of the right ventricle, marking off the conus arteriosus.
temporal crest of frontal bone  a ridge extending superiorly and posteriorly from the zygomatic process of the frontal bone.
turbinal crest 
1. (of maxilla) an oblique ridge on the maxilla, articulating with the nasal concha.
2. (of palatine bone) a horizontal ridge on the internal surface of the palatine bone.
urethral crest  a prominent longitudinal mucosal fold along the posterior wall of the female urethra, or a median elevation along the posterior wall of the male urethra between the prostatic sinuses.
crest of vestibule  a ridge between the spherical and elliptical recesses of the vestibule, dividing posteriorly to bound the cochlear recess.

crest

(krĕst)
n.
A projection or ridge, especially of bone.

crest

a narrow elongated elevation, as the iliac crest.

CREST

Abbreviation for:
Calcinosis Raynaud Esophagus Sclerosis Teleangiectasia
Carotid Revascularization Endarterectomy versus Stent
Clinical Resource Efficiency Support Team (Medspeak-UK)
Cocaine Rapid Efficacy Screening Trial

crest

(krest) [TA]
A ridge, especially a bony ridge.
Synonym(s): crista [TA] .
[L. crista]

crest

bony ridge

CREST

acronym denoting a group of connective tissue diseases characterized by calcinosis (C), Raynaud's (R), oesophagitis (E), sclerodactyly (S) and telangiectasia (T); e.g. scleroderma, systemic sclerosis

crest

(krest) [TA]
A ridge, especially a bony ridge.
Synonym(s): crista [TA] .
[L. crista]

crest,

n a projecting ridge or structure.
crest, alveolar,
crest, gingival,
n the coronal margin of the gingival tissue.

crest

1. a projecting structure or ridge, especially one surmounting a bone or its border.
2. a term describing the upper margin of the neck; root of the mane in a horse.
3. in canaries, a crown of long feathers on the head, all radiating out from a central point; inherited as a dominant trait.

ampullary crest
linear thickenings of the walls of the ampullae of the semicircular canals.
dental crest
the maxillary ridge passing along the alveolar processes of the fetal maxillary bones.
epicondylar crest
ridges which extend from the epicondyles of the humerus to the shaft.
ethmoid crest
located on the inside surface of the nasal bones of the pig and dog.
external occipital crest
an extension of the external occipital protuberance to which the ligamentum nuchae is attached.
facial crest
the prominent crest on the external aspect of the maxilla of horses stretching from beneath the orbit to the middle of the molar teeth. The masseter muscle is attached to its ventral surface.
crest hair
see mane.
iliac crest
the thickened cranial border of the ilium of dogs and cats.
neck crest
the fatty, fibrous tissue above the nuchal ligament which gives the stallion's neck its characteristic elevated contour.
neural crest
cords of nervous tissue which detaches from the developing spinal cord in the embryo; contribute tissue to the somatic and autonomic ganglia, and many other structures.
nuchal crest
the thick, transverse crest on the occipital bone.
palatine crest
a low transverse ridge on the palatine bones.
petrosal crest
divides the cranial cavity into cerebellar and cerebral compartments.
renal crest
the median ridge in the pelvis of many kidneys onto which papillary ducts open.
reticular c's
the mucosal folds in the ruminant reticulum that form the cells of the honeycomb compartments of the walls.
sacral c's
the median crest is the fused dorsal spines of the sacral vertebrae; the lateral sacral crest is the fused articular processes.
sagittal crest
the ridge in the middle of the skull which extends forwards from the occipital protuberance; more pronounced in some species, breeds and individuals.
trochanteric crest
a ridge which runs between the greater and lesser trochanters and forms the caudal wall of the trochanteric fossa.
urethral crest
a longitudinal ridge in the roof of the pelvic urethra formed from two folds of urinary bladder mucosa which fuse after separate origins at the ureteric orifices.
vestibular crest
divides the vestibule of the inner ear into the spherical and elliptical recesses.