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.
Portland is the most populous city in Oregon and the third most populous city in the Pacific Northwest, after Seattle and Vancouver. With its many rose gardens, Portland is known as the City of Roses and it has been incorporated since 1851. Portland leads Oregon in population growth.The 2014 Portland population is estimated at 600,000 in the city proper, or more 2.36 million in the metropolitan area. At the 2010 census, Portland had a population of almost 584,000, which was estimated to have reached 587,800 by 2012.In 2014, it is believed this number has grown to about 600,000. This makes Portland the 28th most populous city in the country.t the 2010 census, Portland had a population of almost 584,000, which was estimated to have reached 587,800 by 2012. In 2014, it is believed this number has grown to about 600,000.