Is the resting membrane potential

- is a period during which inward and outward currents are equal and the membrane potential approaches the K+ equilibrium potential.

- is normally the pacemaker of the heart.

- does not have a constant resting potential.

- exhibits phase 4 depolarization, or automaticity.

- The AV node and the His-Purkinje systems are latent pacemakers that may exhibit automaticity and override the SA node if it is suppressed.

- The intrinsic rate of phase 4 depolarization (and heart rate) is fastest in the SA node and slowest in the His-Purkinje system:

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Diabetes 2

Diabetes 2

Diabetes is a disease that affects the way your body uses food. Normally, your body converts sugars, starches and other foods into a form of sugar called glucose. Your body uses glucose for fuel. The cells receive the glucose through the bloodstream. They then use insulin a hormone made by the pancreas to absorb the glucose, convert it into energy, and either use it or store it for later use. Learn more...

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