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Model Mathematics

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Component: environment

Component: angiotensin

Component: instantaneous_angiotensin_formation

MDFLW3 = MDFLW ANGSCR = \{\begin{matrix} \frac{1}{1 + (MDFLW3 - 1) 72} if MDFLW3 > 1 \\ 10 - (\frac{9}{1 + (1 - MDFLW3) 8}) otherwise \end{matrix}

Component: time_delayed_angiotensin_formation

ANX = (ANGSCR - 1) ANXM \frac{d}{d time} (ANX1) = \frac{ANX - ANX1}{ANV}

Component: total_angiotensin_formation

ANPRT = (ANGSCR + ANX1) REK ANPR = \{\begin{matrix} 0.00001 if ANPRT < 0.00001 \\ ANPRT otherwise \end{matrix}

Component: artificial_angiotensin_formation

ANPR1 = \{\begin{matrix} ANGKNS if ANGKNS > 0 \\ ANPR + ANGINF otherwise \end{matrix}

Component: angiotensin_concentration

\frac{d}{d time} (ANC) = \frac{ANPR1 - ANC}{ANT}

Component: general_angiotensin_multiplier

ANM = ANMUL - (\frac{ANMUL - 1}{\frac{ANMLL - 1}{ANMLL - ANMUL} (ANC - 1) ANCSNS + 1})

Component: angiotensin_effect_on_circulation

ANU1 = (ANM - 1) ANUM + 1 ANU = \{\begin{matrix} ANULL if ANU1 < ANULL \\ ANU1 otherwise \end{matrix}

Component: angiotensin_effect_on_venous_constriction

ANUVN = (ANU - 1) ANUVM + 1

Component: parameter_values

Source: Derived from workspace Guyton, Angiotensin, 2008 at changeset 0dee8faa4a73.

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