Coronary sinus
(Redirected from Sinus coronarius)
Coronary Sinus
The Coronary sinus is a collection of veins joined together to form a large vessel that collects blood from the myocardium of the heart. It delivers less oxygenated blood to the right atrium, as opposed to the pulmonary veins which deliver oxygenated blood from the lungs to the left atrium.
Structure[edit | edit source]
The coronary sinus is located in the coronary sulcus on the posterior side of the heart, between the left atrium and left ventricle. It is directly above the tricuspid valve, which separates the right atrium from the right ventricle.
Function[edit | edit source]
The function of the coronary sinus is to collect blood from the veins of the heart and return it to the right atrium. This blood is then pumped to the lungs where it is oxygenated before being returned to the left side of the heart.
Clinical significance[edit | edit source]
The coronary sinus can be used in several clinical procedures. For example, it can be used to deliver medication or to perform an angiogram to visualize the coronary veins. It can also be used to implant a pacemaker or defibrillator lead.
See also[edit | edit source]
References[edit | edit source]
External links[edit | edit source]
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