Crista terminalis

Crista terminalis
Crista terminalis
Gray493.png
Interior of the heart, frontal view. (Crista terminalis labeled at left, second from the top.)
Latin crista terminalis atrii dextri
Gray's subject #135 509

The Crista Terminalis represents the junction between the sinus venosus and the heart in the developing embryo. In the development of the human heart, the right horn and transverse portion of the sinus venosus ultimately become incorporated with and form a part of the adult right atrium. The line of union between the right atrium and the right auricle is present on the interior of the atrium in the form of a vertical crest, known as the crista terminalis of His (Wilhelm His, Jr.). The crista terminalis is generally a smooth-surfaced, thick portion of heart muscle in a crescent shape at the opening into the right auricle. On the external aspect of the right atrium, corresponding to the crista terminalis is the sulcus terminalis. The Crista Terminalis provides the origin for the pectinate muscles.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

v · d · eAnatomy of torso, cardiovascular system: heart (TA A12.1, TH H3.09.01, GA 5.524)
General
Surface
Internal
Chambers
Layers

M: HRT

anat/phys/devp

noco/cong/tumr, sysi/epon, injr

proc, drug (C1A/1B/1C/1D), blte



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  • Crista terminalis — galinė skiauterė statusas T sritis gyvūnų anatomija, gyvūnų morfologija atitikmenys: lot. Crista terminalis ryšiai: platesnis terminas – dešinysis prieširdis …   Veterinarinės anatomijos, histologijos ir embriologijos terminai

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  • crista terminalis atrii dextri — [TA] terminal crest of right atrium: a ridge on the internal surface of the right atrium of the heart, located to the right of the orifices of the superior and inferior venae cavae, and separating the sinus venarum cavarum from the atrium proper… …   Medical dictionary

  • Crista — (lat. für „Leiste“, „Kamm“; Plural Cristae) ist in der Anatomie eine leistenförmige Struktur. Entsprechend der anatomischen Nomenklatur werden unterschieden: Crista ampullaris in der Bogengangampulle des Vestibularapparates, Absatz für das… …   Deutsch Wikipedia

  • Crista (disambiguation) — Crista, Crest in Latin, may refer to: Crista, an internal compartment formed by the inner membrane of a mitochondrion Crista ampullaris, a sensory organ of the internal ear Crista dividends, a structure in the developing heart of the human embryo …   Wikipedia

  • crista — SYN: crest. [L. crest] c. ampullaris [TA] SYN: ampullary crest. c. ampullaris (ductuum semicircularium) [TA] SYN: ampullary crest (of semicircular ducts). c. arcuata cartilaginis arytenoideae [TA] SYN: arcuate crest of arytenoid cartilage. c.… …   Medical dictionary

  • sulcus terminalis cordis — [TA] a shallow groove on the external surface of the right atrium of the heart between the superior and inferior venae cavae; it represents the junction of the sinus venosus with the primitive atrium in the embryo, and corresponds to a ridge on… …   Medical dictionary

  • nervus terminalis — nervus ter·mi·na·lis .tər mə nā ləs n, pl nervi ter·mi·na·les (.)lēz a group of ganglionated nerve fibers that arise in the cerebral hemisphere near where the nerve tract leading from the olfactory bulb joins the temporal lobe and that pass… …   Medical dictionary

  • CrT — • crista terminalis …   Dictionary of medical acronyms & abbreviations

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