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What is the major collecting vessel of the cardiac venous drainage system?
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What does the venous system do?
The venous system is responsible for returning deoxygenated blood from the tissues back to the heart. It transports this blood through a network of veins, which have valves to prevent the backflow of blood. The venous system also plays a role in regulating blood volume and pressure in the body.
What conduct fluid from the interstitial space back to the venous system?
lymphatic system
What are the largest vessels in the venous system?
Superior vena cava and the inferior vena cava
What is a normal venous return of blood flow?
The normal venous return of blood flow refers to the amount of blood that is returned to the heart from the veins per unit of time. In a resting individual, the average venous return is approximately 5 liters of blood per minute. This value can fluctuate depending on factors such as physical activity or medical conditions.
What is a venous duct?
The venous duct connects the umbilical arteries to the liver.
Where does the csf drain from subarachnoid space?
In the brain we have small protrusions of the arachnoid and subarachnoid space into the venous system. These protrusions are called arachnoid villi or arachnoid granulations and they allow for drainage of CSF into the venous system. Another source of CSF drainage is the lymphatic system.
Which veins drain the walls of the heart?
The coronary sinus provides venous drainage to the myocardium. There is, however, direct drainage into the ventricles as well.
Which vein drain the walls of the heart?
The coronary sinus provides venous drainage to the myocardium. There is, however, direct drainage into the ventricles as well.
How does nitroprusside affect cardiac output?
Sodium nitroprusside is used in emergency to reduce the very high blood pressure. The drug dilates the arterial as well as venous system. So you get tachycardia and cardiac out put increases probably.
What Venous system that carries digested materials?
The Portal Venous System
In addition to an inadequacy of circulating volume venous return and cardiac output are?
decreased
What will the venous return be if the cardiac output is 7.5 liters?
Venous return must always match cardiac output. So a CO of 7.5 l/m mill mean a VR od 7.5 l/m
What might an abnormal increase in venous pressure indicates?
these factors can increase central venous pressure: decreased cardiac output, increased blood volume, venous constriction,forced expiration, muscle contraction
What might an abnormal increase venous pressure indicate?
these factors can increase central venous pressure: decreased cardiac output, increased blood volume, venous constriction,forced expiration, muscle contraction
How does the venous return mechanism work?
pressure gradient , gravity , skeletal muscle pump, thoracic pump and cardiac suction would be the mechanisms for venous return.
How does positive-pressure ventilation affect cardiac output?
It increases intrathoracic pressure which decreases venous return to the heart and causes a decrease in cardiac output.
How does positive pressure ventilation affect cardiac output?
It increases intrathoracic pressure which decreases venous return to the heart and causes a decrease in cardiac output.
