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Encyclopedia > Right ventricle
Right ventricle
Anterior (frontal) view of the opened heart. White arrows indicate normal blood flow.
Interior of right side of heart.
Latin ventriculus dexter
Gray's subject #138 531
Artery right marginal branch of right coronary artery
Precursor primitive ventricle, bulbus cordis
MeSH Heart+Ventricles

The right ventricle is one of four chambers (two atria and two ventricles) in the human heart. It receives de-oxygenated blood from the right atrium via the tricuspid valve, and pumps it into the pulmonary artery via the pulmonary valve. Image File history File links Diagram_of_the_human_heart_(cropped). ... Image File history File links Gray493. ... For other uses, see Latin (disambiguation). ... Section of an artery For other uses, see Artery (disambiguation). ... The right marginal branch of right coronary artery (or right marginal artery) is a large marginal branch which follows the acute margin of the heart and supplies branches to both surfaces of the right ventricle. ... This article or section is in need of attention from an expert on the subject. ... The primitive ventricle becomes divided by a septum, the septum inferius or ventricular septum, which grows upward from the lower part of the ventricle, its position being indicated on the surface of the heart by a furrow. ... When the heart assumes its S-shaped form the bulbus cordis lies ventral to and in front of the primitive ventricle. ... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... Heart chamber is a general term used to refer to any of the four chambers of the Mammalian heart: Right atrium receives oxygen-depleted blood from the body via the superior vena cava and the inferior vena cava and pumps it through the tricuspid valve into the right ventricle. ... In anatomy, the atrium (plural: atria) is the blood collection chamber of a heart. ... In the heart, a ventricle is a heart chamber which collects blood from an atrium (another heart chamber that is smaller than a ventricle) and pumps it out of the heart. ... This article is about modern humans. ... The heart and lungs, from an older edition of Grays Anatomy. ... General Name, symbol, number oxygen, O, 8 Chemical series nonmetals, chalcogens Group, period, block 16, 2, p Appearance colorless (gas) pale blue (liquid) Standard atomic weight 15. ... Human blood smear: a - erythrocytes; b - neutrophil; c - eosinophil; d - lymphocyte. ... This page is about the muscular organ, the Heart. ... The tricuspid valve is on the right side of the heart, between the right atrium and the right ventricle. ... The pulmonary arteries carry blood from the heart to the lungs. ... The pulmonary valve, also known as pulmonic valve, is the semilunar valve of the heart that lies between the right ventricle and the pulmonary artery and has three cusps. ...


It is triangular in form, and extends from the right atrium to near the apex of the heart. Apex of the Heart: it is the most outer superficial part of the heart which is situated on the left 5th intercostal space. ...

Contents

Boundaries

Its anterosuperior surface is rounded and convex, and forms the larger part of the sternocostal surface of the heart.


Its under surface is flattened, rests upon the diaphragm, and forms a small part of the diaphragmatic surface of the heart. In the anatomy of mammals, the diaphragm is a shelf of muscle extending across the bottom of the ribcage. ...


Its posterior wall is formed by the ventricular septum, which bulges into the right ventricle, so that a transverse section of the cavity presents a semilunar outline. Interventricular septum: The stout wall separating the lower chambers (the ventricles) of the heart from one another. ...


Its upper and left angle forms a conical pouch, the conus arteriosus, from which the pulmonary artery arises. The upper and left angle of the right ventricle forms a conical pouch, the conus arteriosus, from which the pulmonary artery arises. ... The pulmonary arteries carry blood from the heart to the lungs. ...


A tendinous band, which may be named the tendon of the conus arteriosus, extends upward from the right atrioventricular fibrous ring and connects the posterior surface of the conus arteriosus to the aorta.


The wall of the right ventricle is thinner than that of the left, the proportion between them being as 1 to 3; it is thickest at the base, and gradually becomes thinner toward the apex.


The cavity equals in size that of the left ventricle, and is capable of containing about 85 c.c.


Components

Its interior presents the following parts for examination:

The right atrioventricular orifice (right atrioventricular opening) is the large oval aperture of communication between the right atrium and ventricle. ... The pulmonary arteries carry blood from the heart to the lungs. ... The tricuspid valve is on the right side of the heart, between the right atrium and the right ventricle. ... The pulmonary valve, also known as pulmonic valve, is the semilunar valve of the heart that lies between the right ventricle and the pulmonary artery and has three cusps. ... The trabeculae carneae (columnae carneae) are rounded or irregular muscular columns which project from the whole of the inner surface of the ventricle, with the exception of the conus arteriosus. ... The chordae tendinae are cord-like tendons that connect the papillary muscles to the tricuspid valve and the mitral valve in the heart. ...

Additional images

See also

In the heart, a ventricle is a chamber which collects blood from an atrium (another heart chamber) and pumps it out of the heart. ... Double outlet right ventricle (or DORV) is a condition where both of the great arteries connect (in whole or in part) to the right ventricle. ... Right ventricular hypertrophy (RVH) is a form of ventricular hypertrophy affecting the right ventricle. ...

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. The State University of New York Health Science Center at Brooklyn, better known as SUNY Downstate Medical Center, is an academic medical center and is the only one of its kind in the Borough of Brooklyn in New York City. ... The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body (or Grays Anatomy as it has more commonly become known) is an anatomy textbook widely regarded as a classic work on human anatomy. ...


  Results from FactBites:
 
Right ventricle definition - Medical Dictionary definitions of popular medical terms easily defined on MedTerms (202 words)
Right ventricle: The lower right chamber of the heart that receives deoxygenated blood from the right atrium and pumps it under low pressure into the lungs via the pulmonary artery.
The tricuspid valve is located between the right atrium and right ventricle and ensures the flow of blood from the right atrium into the right ventricle and prevents the reverse.
The pulmonary valve is situated between the right ventricle and the pulmonary artery and performs similarly as a one-way valve.
Ventricles (1225 words)
The junction between the infundibulum and the right ventricle is composed of the parietal band, the septal band and the moderator band.
The three components of the definitive right ventricle are therefore the inlet (the tricuspid valve and atrioventricular septum), the apical trabecular portion, and the outlet portion (infundibulum).
The infundibulum, is incorporated mainly into the right ventricle, where it forms a conal ring consisting of three components: (1) the distal conal septum, which extends on to the parietal or free wall, forming the parietal band; (2) the septal band, or proximal conal septum; and (3) the moderator band.
  More results at FactBites »

 
 

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