Fluid Dynamics, Hydrostatic Pressure & Archimedes

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Fluid mechanics models blood circulation and respiratory pressure gradients.

Hydrostatic Pressure: \(P = P_0 + \rho g h\) where \(\rho\) = fluid density, \(g\) = 9.8 m/s², \(h\) = depth.
Archimedes' Principle: Buoyant force equals the weight of displaced fluid: \(F_b = \rho_{\text{fluid}} V_{\text{displaced}} g\).
Continuity Equation: \(A_1 v_1 = A_2 v_2\) (Narrower blood vessels lead to higher flow velocity).

Exam strategy

Focus on understanding underlying concepts — exam questions test application, not memorization.