The cytoskeleton is made of strings of proteins that constantly stretch and shrink as the neuron sends out projections toward other neurons, making and breaking connections. This neuron is from mouse hippocampus, a part of the brain important in memory, but the ones in the human brain are constructed much the same way.
Brain neurons, light micrograph. This looks like a fab expressionistic painting.
As Little Girls and Boys Grow, They Think Alike by Avery Johnson: By measuring the thickness of the brain's cortex and how it changes over time, scientists have found that boys' and girls' brains, on average, differ significantly at age 9. But by the time the participants reached age 22, the brains of the two sexes grew more alike in many areas critical for learning. These images are combined male/female brains. White shows areas of concordance. #Gender_Development #Brain #WSJ #Avery_Johnson