Why does it take so long for the stomach to empty a meal into the small intestines?

In your small intestine, food mixes with additional digestive fluids. This is where most of the nutrient absorption takes place. Food can spend between 2 to 6 hours in your small intestine.Aug 10, 2020

Explanation:

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

read more on -