cricoid cartilage


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

cartilage

 [kahr´tĭ-lij]
a specialized, fibrous connective tissue present in adults, and forming most of the temporary skeleton in the embryo, providing a model in which most of the bones develop, and constituting an important part of the organism's growth mechanism; the three most important types are hyaline cartilage, elastic cartilage, and fibrocartilage. Also, a general term for a mass of such tissue in a particular site in the body.
 Involvement of joint and cartilage in osteoarthritis. From ARHP Arthritis Teaching Slide Collection, American College of Rheumatology.
alar c's the cartilages of the wings of the nose.
aortic cartilage the second costal cartilage on the right side.
arthrodial cartilage (articular cartilage) that lining the articular surfaces of synovial joints.
arytenoid c's two pyramid-shaped cartilages of the larynx.
connecting cartilage that connecting the surfaces of an immovable joint.
costal cartilage a bar of hyaline cartilage that attaches a rib to the sternum in the case of true ribs, or to the immediately above rib in the case of the upper false ribs.
cricoid cartilage a ringlike cartilage forming the lower and back part of the larynx.
diarthrodial cartilage articular cartilage.
elastic cartilage cartilage that is more opaque, flexible, and elastic than hyaline cartilage, and is further distinguished by its yellow color. The ground substance is penetrated in all directions by frequently branching fibers that give all of the reactions for elastin.
ensiform cartilage xiphoid process.
fibrous cartilage fibrocartilage.
floating cartilage a detached portion of semilunar cartilage in the knee joint.
hyaline cartilage flexible, somewhat elastic, semitransparent cartilage with an opalescent bluish tint, composed of a basophilic fibril-containing substance with cavities in which the chondrocytes occur.
 Hyaline cartilage. The matrix nearest the chondrocytes is intensely staining; although the matrix appears homogeneous, collagen fibrils may be visualized by polarized light or electron microscopy. From Dorland's, 2000.
Meckel's cartilage the ventral cartilage of the first branchial arch.
permanent cartilage cartilage that does not normally become ossified.
Reichert's cartilage the dorsal cartilage of the second branchial arch.
reticular cartilage elastic cartilage.
semilunar cartilage one of the two interarticular cartilages of the knee joint.
temporary cartilage cartilage that is normally destined to be replaced by bone.
thyroid cartilage the shield-shaped cartilage of the larynx, underlying the laryngeal prominence on the surface of the neck.
vomeronasal cartilage either of the two narrow strips of cartilage, one on each side, of the nasal septum supporting the vomeronasal organ.
yellow cartilage elastic cartilage.

cri·coid car·ti·lage

[TA]
the lowermost of the laryngeal cartilages; it is shaped like a signet ring, being expanded into a nearly quadrilateral plate (lamina) posteriorly; the anterior portion is called the arch (arcus).

cri·coid car·ti·lage

(krī'koyd kahr'ti-lăj) [TA]
The lowermost of the laryngeal cartilages. It is shaped like a signet ring, being expanded into a nearly quadrilateral plate (lamina) posteriorly; the anterior portion is called the arch (arcus).
Synonym(s): cartilago cricoidea [TA] .

cri·coid car·ti·lage

(krī'koyd kahr'ti-lăj) [TA]
The lowermost of the laryngeal cartilages. It is shaped like a signet ring.
References in periodicals archive ?
As for the cricoid cartilage, their study found a difference in ossification between the inner and outer surfaces in the male donors; complete ossification was present on the inner surface in 12 specimens and on the outer surface in only 7.
A CT scan was performed which shows decreased tracheal lumen and thickening of the thyroid and cricoid cartilages (Figure 1).
The thyropharyngeus muscle is shaved off the thyroid cartilage, and the cricopharyngeus muscle is removed from the cricoid cartilage.
The thyroid and cricoid cartilages can fracture, buckle and dislocate with respect to each other (Figure 4) Paraglottic hemorrhage and/or edema as well as abnormal endolaryngeal contour or configuration are findings at CT that often accompany cartilage injuries (Figure 4) In newer management paradigms, laryngeal cartilage fractures are surgical lesions, reduced and fixed with adaptation plating to restore the skeletal anatomy necessary for proper phonation (Figure 5).
The whole trachea was then removed from the cricoid cartilage of the larynx to the lungs.
This space is bounded superiorly by the cricopharyngeus muscle, anteriorly by the posterior wall of the cricoid cartilage, and inferomedially by the longitudinal tendon of the oesophagus as it inserts onto the cricoid cartilage.
The aim of applying cricoid pressure is to exert pressure on the cricoid cartilage to occlude the oesophagus, which then prevents the regurgitation of stomach contents into the pharynx.
(2) Major causes leading to stenosis at stoma site include; large tracheostomy stoma or large tube inserted in small stoma by force, damage to the first tracheal ring or cricoid cartilage, wound sepsis and abnormal wound healing with excess granulation tissue formation around the tracheal stoma.
As mentioned, the tracheostomy is typically placed around the second or third tracheal ring below the cricoid cartilage. The vocal cords are above this point.
CTM height, cricoid cartilage width (midline and transverse) and cross-sectional area of the cricoid ring, using ultrasound with the airway immersed in water, were also recorded.