This differentiates the central nervous system from the peripheral nervous system, which consists of neurons, axons and Schwann cells. Oligodendrocytes and Schwann cells have similar functions in the central and peripheral nervous system respectively.
A single stroller rental currently costs $15 per day, and a double costs $31 per day. Buying multi-day/length of stay rental saves $2 per day for a single and $4 per day for a double. A $100 deposit is required for strollers rented at Downtown Disney.
Rent a stroller, if you didn't bring one, so you can take a load off while traveling around the park with your kids. Disney World has single and double strollers available to rent, which also afford you a storage facility for diaper bags and snacks; taking your own food and drink saves money.