GROSS ANATOMY

Detailed explanation-1: -Pressure gradient force, is the force produced by differences in barometric pressure between two regions and is responsible for the flow of air from a region of high pressure to a region of low pressure.

Detailed explanation-2: -The pressure is the ratio of the force applied to the surface area over which the force is applied. Hydrostatic pressure is the pressure exerted by liquids.

Detailed explanation-3: -At the arterial end of a vessel, the hydrostatic pressure is greater than the osmotic pressure, so the net movement favors water and other solutes being passed into the tissue fluid. At the venous end, the osmotic pressure is greater, so the net movement favors substances being passed back into the capillary.

Detailed explanation-4: -(a) Hydrostatic pressure is determined by the height (h) of a column of water above a reference point (arrow) irrespective of the container shape. The hydrostatic pressure is the same at all arrows. (b) Hydraulic pressure (P) is exerted by a piston or pump and at any point in a fluid is the same in all directions.

Detailed explanation-5: -The hydrostatic pressure gradient is the rate of change in formation fluid pressure with depth. Fluid density is the controlling factor in the normal hydrostatic gradient. In the U.S. Rocky Mountains, a formation water gradient of 0.45 psi/ft is common. In the U.S. Gulf Coast, a gradient of 0.465 psi/ft is common.