The sinus venosus is a large quadrangular cavity which precedes the atrium on the venous side of the chordate heart.[verification needed] In mammals,...

beating on an ECG Coronary sinus, a vein collecting blood from the heart Sinus venosus, a cavity in the heart of embryos Sinus venarum, a part of the wall...

arteriosus, bulbus cordis, primitive ventricle, primitive atrium, and the sinus venosus. The truncus arteriosus splits into the ascending aorta and the pulmonary...

right atrium, the sinus venarum, which are derived from the sinus venosus. The sinus venarum is the adult remnant of the sinus venosus and it surrounds...

of the sinus venosus ultimately become incorporated with and form a part of the adult right atrium. The right sinus horn of the sinus venosus develops...

defects. This type of defect is usually associated with Down syndrome. A sinus venosus ASD is a type of atrial septum defect in which the defect involves the...

Enlarged general view of the iridial angle. (Labeled with older label of 'sinus venosus scleræ' at center top.) Intraocular pressure Ocular hypertension Aspelund...

A sinus venosus atrial septal defect is a type of atrial septal defect primarily associated with the sinus venosus. They represent 5% of atrial septal...

continuous, and the sinus venosus coordinates the beat, which passes in a wave through the remaining chambers. Since the sinus venosus is incorporated into...

the heart. A ligature placed either around the junction between the sinus venosus and atrium of the frog or turtle heart (first stannius ligature) or...

primitive ventricle, primitive atrium, and the sinus venosus. Initially, all venous blood flows into the sinus venosus, and is propelled from tail to head to...

The coronary sinus (from Latin corona 'crown'[citation needed]) is the largest vein of the heart. It drains over half of the deoxygenated blood from the...

muscles. The sinus venarum represents the portion of the adult heart that develops from the right sinus horn of the foetal sinus venosus. The sinus venarum...

"accessory chambers". The four compartments are arranged sequentially: Sinus venosus: A thin-walled sac or reservoir with some cardiac muscle that collects...

of heart development. From the inflow to the outflow, it consists of sinus venosus, primitive atrium, the primitive ventricle, the bulbus cordis, and truncus...

During development of the heart, the orifice of the sinus venosus lies obliquely, and is guarded by two valves, the right and left venous valves; above...

veins, also known as the ducts of Cuvier, are veins that drain into the sinus venosus during embryonic development. These drain an anterior cardinal vein...

Human embryo with heart and anterior body-wall removed to show the sinus venosus and its tributaries Section across the portal triad of the pig Longitudinal...

returning to the heart. As the heart beats, deoxygenated blood enters the sinus venosus. The blood then flows through the atrium to the ventricle, before emptying...

cardiac involuntary muscles. The main structures of the heart are the sinus venosus, the pacemaker, the left atrium, the right atrium, the atrioventricular...

cardinal veins to form the left common cardinal veins, which empty in the sinus venosus. In the development of a human embryo, most of the posterior cardinal...

Human embryo with heart and anterior body-wall removed to show the sinus venosus and its tributaries. Schematic figure of the lesser sac, etc. Human...

Human embryo with heart and anterior body-wall removed to show the sinus venosus and its tributaries. Longitudinal section of a hepatic vein. Hepatic...

branches of the portal vein. The vessels draining the plexus into the sinus venosus are termed the venae revehentes, and form the future hepatic veins....

umbilical veins and the cardinal veins, all of which empty into the sinus venosus. About 98.5% of the oxygen in a sample of arterial blood in a healthy...

conduction pathway. Pacemaker cells develop in the primitive atrium and the sinus venosus to form the sinoatrial node and the atrioventricular node respectively...

appear somewhat rough. Sina venarum corresponds to the right horn of sinus venosus of the embryonic heart. Externally, the most prominent features of the...

including two chambers and an entrance and exit. The first part is the sinus venosus, a thin-walled sac that collects blood from the fish's veins before...

standard understanding. Specific examples include Truncus Arteriosus, sinus venosus atrial septal defect, and heterotaxy syndrome. Society for Cardiovascular...

occur within unhealthy hearts, caused by: Infection Disease, such as sinus venosus and atrial defects SA node dysfunction (1st degree block) which can...