Coronary Sinus
Coronary Sinus - Related Videos
13:10
Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)
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Cited by 7 •
2017
Surgical correction of ALCAPA is highly recommended, regardless of age or the degree of intercoronary collateralization. This protocol presents a technique for the direct re-implantation of adult-type ALCAPA into the aorta to re-establish the dual-coronary perfusion. Whenever feasible, direct re-implantation is preferred to other surgical correction techniques.
08:46
Nose, Sinuses, Oral Cavity and Pharynx Exam
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2023
Source: Richard Glickman-Simon, MD, Assistant Professor, Department of Public Health and Community Medicine, Tufts University School of Medicine, MA This video provides an overview of sinus, nose, and throat examinations. The demonstration begins with a brief overview of the anatomy of the region. The upper third of the nose is bony, and the bottom two-thirds are cartilaginous. Air entering the nares passes through the nasal vestibules and into the narrow passageway between the nasal septum...
06:43
Quantitative Analysis and Characterization of Atherosclerotic Lesions in the Murine Aortic Sinus
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Cited by 51 •
2013
We describe procedures to quantify and characterize atherosclerotic lesions in mouse models using precision sectioning of the aortic sinus and ascending aorta combined with histochemical and immunohistochemical analysis.
07:34
Establishment of a Modified Ferric Chloride-Induced Superior Sagittal Sinus Thrombosis
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2025
This study presents a protocol for establishing a reproducible, minimally invasive rat model of superior sagittal sinus thrombosis induced by ferric chloride, utilizing a silk-suture method in combination with laser speckle contrast imaging and high-resolution ultrasound for evaluation.
06:39
Ultrasound Based Assessment of Coronary Artery Flow and Coronary Flow Reserve Using the Pressure Overload Model in Mice
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Cited by 20 •
2015
Coronary flow reserve (CFR) is useful for assessment of myocardial oxygen demand and evaluation of cardiovascular risk. This study establishes a step-by-step transthoracic Doppler echocardiographic (TTDE) method for longitudinal monitoring of the changes in CFR, as measured from coronary artery in mice, under the experimental pressure overload of aortic banding.
FAQs
The coronary sinus provides the collecting pathway for blood leaving the cardiac muscle after the myocardium has been supplied. Its position in the posterior atrioventricular groove connects the drainage of several cardiac veins with the right atrium. This arrangement distinguishes venous return from the myocardium from blood movement through the heart chambers.
Several cardiac veins converge before entering the coronary sinus, allowing venous blood from different regions of the heart muscle to be collected into one principal channel. This organization creates a coordinated route for myocardial drainage rather than separate direct pathways into the atrium, helping explain the structure of the coronary circulation.
The coronary sinus highlights that the myocardium has its own vascular circulation, separate from the circulation of blood within the chambers. Blood supplying cardiac muscle must ultimately return through the heart’s venous network. Studying this channel therefore links myocardial perfusion with venous drainage and clarifies how the heart supports its own working tissue.
The coronary sinus belongs to the venous return system of the cardiac muscle, whereas the chambers conduct or receive blood involved in the heart’s main pumping circuit. Its role is therefore specialized: it drains the myocardium and delivers that venous blood to the right atrium, rather than participating as a pumping chamber.
Cardiac imaging can use the coronary sinus to study the anatomy of the heart’s venous system, including its course along the posterior atrioventricular groove and its relationship to nearby cardiac structures. Examining these features helps investigators assess myocardial venous drainage and understand the anatomical pathways relevant to cardiovascular structure and function.
In electrophysiology, the coronary sinus is relevant because it offers access to the heart’s venous system while remaining closely associated with cardiac muscle and the atrioventricular region. Its anatomical course can help researchers and clinicians assess cardiac structures during procedures, particularly when venous pathways provide useful routes for examining heart activity.
Procedures may use the coronary sinus as an anatomical access point for evaluating the venous network that drains the myocardium. Because it receives several cardiac veins and empties into the right atrium, examining this channel can provide information about the organization and continuity of cardiac venous return.
The coronary sinus connects several areas of cardiovascular investigation: myocardial blood supply, venous drainage, cardiac imaging, and electrophysiology. Its anatomy provides a framework for studying how the heart muscle receives and returns blood independently of the chamber circulation. This makes it useful for relating structural observations to broader cardiac function.