In its resting state, the neuron is more negative inside compared to outside. The resting membrane potential is -70 millivolts (mV). The reason for this is because of the distribution of charged ions :
The 2014 Portland, Maine, population is 66,235. There are 3,108 people per square mile (population density). The median age is 36.7. The US median is 37.2. 38.53% of people in Portland, Maine, are married. 13.81% are divorced. The average household size is 2.08 people. 27.60% of people are married, with children. 19.64% have children, but are single.
June average seven days of temperatures to reach or exceed 80 degrees, July usually sees 15 days, and August averages 15. Portland also sees an average of 12 days of 90 degrees or above. The first frost is in early November, and the last frost in early April.