A three-year-old child who uses language as a guide to solving problems, such as saying "Put it there" to himself as he builds a tower of blocks, is using which of the following?

When a neurotransmitter is released, but it does not fit into a suitable receptor on the postsynaptic neuron _______

a. an inhibitory postsynaptic potential will be generated b. the strength of the action potential in the presynaptic neuron will increase c. the firing potential of the postsynaptic neuron will not be affected d. an excitatory postsynaptic potential will be generated

All nerve cells and fibers that are NOT in the brain or spinal cord make up the __________ nervous system

a) central b) peripheral c) autonomic d) sympathetic