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.
Much of Oregon's population is concentrated in the Willamette Valley from Eugene to the south through Corvallis, Salem and Portland, the largest city. Portland is home to 630,309. Other major cities include Eugene (163,460), Salem (164,549), Gresham (110,553) and Hillsboro (102,347). 1  Cities in Oregon. 2  Rank27. 3  2017 Growth Rate 1.41%. 4  Area in Miles (Rank)98,379 (9) 5  State CapitalSalem. 6  Statehood Year1859. 7  Red/Blue Blue.