Explain how an action potential is produced, including discussion of flow of sod

Question

Explain how an action potential is produced, including discussion of flow of sodium and potassium ions, resting potential, threshold potential, and all-or-nothing response. Draw and label a block diagram of blood flow in the cardiovascular system, including chambers of the heart, veins, and arteries. Describe the electrical activity, including the SA node and AV node, and explain how this relates to the mechanical activity, including pumping of blood during systole and diastole. Calculate the Pulse Pressure and the Mean Arterial Pressure (MAP) for a person whose systolic blood pressure is 150 mm Hg, and diastolic is 95.

Explanation / Answer

Answer:

c).

Pulse Pressure = Systolic blood pressure (SBP) - Diastolic blood pressure (DBP)

= 150 - 95 = 55 mm HG

Mean Arterial Pressure (MAP) = SBP + 2 (DBP) / 3

MAP = 150 +2 (95) / 3
  

MAP = (150 +190)/3

MAP = 340/3

MAP = 113 mm HG

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