Venous return and cardiac output work closely together.
Venous Return: This is how much blood comes back to the heart through the veins. Things like the amount of blood in the body and the condition of the veins can affect it.
Cardiac Output (CO): This shows how much blood the heart pumps out in one minute. We can figure it out with the formula: . Here, means heart rate, and means stroke volume.
These two are connected by something called the Frank-Starling mechanism. When more blood returns to the heart, it makes the heart stretch. This stretching helps the heart pump out more blood.
So, if venous return gets better, cardiac output usually goes up too!
Venous return and cardiac output work closely together.
Venous Return: This is how much blood comes back to the heart through the veins. Things like the amount of blood in the body and the condition of the veins can affect it.
Cardiac Output (CO): This shows how much blood the heart pumps out in one minute. We can figure it out with the formula: . Here, means heart rate, and means stroke volume.
These two are connected by something called the Frank-Starling mechanism. When more blood returns to the heart, it makes the heart stretch. This stretching helps the heart pump out more blood.
So, if venous return gets better, cardiac output usually goes up too!