One minor note - Boyle's law says that pressure and volume are inversely related. In your example, you decrease the pressure by increasing the volume by using a vasodilator. Excellent video explaining how to diagnose and treat rails!
" The hydrostatic pressure is much higher in the capillaries than in the tissue space and tend to drive fluid fluid out of the capillaries by filtration "
Dear Rachel: I'm so glad to know you found this video useful! Please let me know if there are other topics you would like to have covered in future videos.