Coronary sulcus: Definition from Answers.com

Coronary sulcus

Sternocostal surface of heart. (Right coronary artery, which runs down coronary sulcus, is visible at left.)
Latin	sulcus coronarius
Gray's	subject #138 526

The atria of the heart are separated from the ventricles by the coronary sulcus (also called coronary groove, auriculoventricular groove, atrioventricular groove, AV groove); this contains the trunks of the nutrient vessels of the heart, and is deficient in front, where it is crossed by the root of the pulmonary artery.

External links

-187695047 at GPnotebook
Coronary+sulcus at eMedicine Dictionary
SUNY Labs 20:st-1101
Diagram

This cardiovascular system article is a stub. You can help Wikipedia by expanding it.

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 As such, some of the information contained within it may be outdated.

Anatomy of torso, cardiovascular system: heart (TA A12.1, GA 5.524)

General

Surface	base · apex · grooves (coronary/atrioventricular, interatrial, anterior interventricula, posterior interventricular) · surfaces (sternocostal, diaphragmatic) · borders (right, left) · Openings of smallest cardiac veins

Internal	atria (interatrial septum, musculi pectinati, sulcus terminalis) · ventricles (interventricular septum, trabeculae carneae, chordae tendineae, papillary muscle) · valves · cusps · Atrioventricular septum cardiac skeleton (fibrous trigone, fibrous rings) Intervenous tubercle

Chambers

Right heart	(vena cavae, coronary sinus) → right atrium (atrial appendage, fossa ovalis, limbus of fossa ovalis, crista terminalis, valve of inferior vena cava, valve of coronary sinus) → tricuspid valve → right ventricle (conus arteriosus, moderator band/septomarginal trabecula) → pulmonary valve → (pulmonary artery and pulmonary circulation)

Left heart	(pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and systemic circulation)

Layers

Endocardium	Heart valves

Myocardium	Conduction system: Cardiac pacemaker · SA node · AV node · bundle of His · Purkinje fibers

Pericardial cavity	Pericardial sinus

Pericardium	fibrous pericardium (Sternopericardiac ligaments) · serous pericardium (epicardium/visceral layer) · Fold of the left vena cava

heart navs: anat/physio/dev, noncongen/congen/neoplasia, symptoms+signs/eponymous, proc

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	Small cardiac vein
	Circumflex branch of left coronary artery
	Diaphragmatic surface of heart

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