For what it's worth, in Iowa, we refer to tossing the Frisbee around as "pissdribble."

I'm just sayin'.

I found this on the internet. Perhaps we have a budding young physicist in the house...

REBUTTAL FROM DR. MAGDER
So close yet so far apart! Dr. Brengelmann finds a "glaring" defect in the balloon model of the circulation and presumably my bathtub analogy (Brengelmann 2006). He argues that the elastic-recoil pressure in the balloon is rapidly dissipated and to "keep Pms constant would require a pump, but then the drive for Fv comes from the pump." I agree with the first part and argued that the heart provides a "restorative" force. However the heart does not "drive" venous return just as the tap filling a tub does not "drive" emptying of the tub. His argument misses Guyton's key point that the "working" cardiac output is determined by interaction of pump function (not cardiac output) and return function (3) and thus the pump is an integral part of Guyton's analysis. He also fails to deal with the flow that occurs without a pump, even if only transiently and that maximum flow is defined by the ratio of stressed volume () to the time constant of its drainage, which is determined by the product of venous compliance (Cv) and resistance (Rv; Ref. 8).
In the physiological range, Cv is essentially constant so that four variables define the system: flow (Q), , Rv [includes the distribution of Q(1)], and right atrial pressure (Pra). A change in one requires a change in at least one of the others (1, 8). The heart only controls Q and Pra. In most of Guyton's experiments, and Rv were constant and changes in Pra were related to changes in Q by a changes in cardiac function (or pump in the experiments). In other studies (2, 5), a pump held cardiac output constant, and changes in Pra equivalent required changes in or Rv. A physiological example occurs with the rise in Pra and fall in Q with an increase in pleural pressure. Recruitment of unstressed to stressed volume then increases MSFP and restores Q (6). During aerobic exercise, Q can increase with a constant Pra (7). This requires an increase or decreased Rv (4).

In conclusion, steady-state and dynamic VR are properly described by MSFP in proportion to the backpressure. However, steady state cardiac output is determined by the interaction of pump and return functions. The heart cannot pump out more than the flow that is determined by the drainage characteristics of the circuit. The heart provides the "restorative force" and, as per Guyton, plays a "permissive" role.

As a follow up to that... I had a meeting today with a group of people form work. One them was named Dahrha Balloon. Distant relative perhaps.

What the fuck does this have to do with Cornhole?

Not a damn thing. But it was the best forum I could find for some "useful" information. Suck it up.

Besides, this sucker is a month stale anyway.

Confusing as it is, Jez, I think my dear brother is actually commenting on a post over at our other family blog. Something to do with my daughter's rich fantasy life. Pay no mind.