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.
This article is about the metropolitan area in Oregon and Washington. For the metropolitan area in Maine, see Portland, Maine metropolitan area. The Portland metropolitan area or Greater Portland is a metropolitan area in the U.S. states of Oregon and Washington centered on the principal city of Portland, Oregon.he PortlandâVancouverâHillsboro Metropolitan Statistical Area (MSA), the 23rd largest in the United States, has a population of 2,226,009 (2010 Census).