The part of the neuron that carries outgoing messages either to another neuron or a muscle or gland is the ______

The sleep–wake cycle is ultimately controlled by the part of the brain called the __________

a. optical nerve b. frontal lobe c. hypothalamus d. median forebrain bundle e. putamen

Within psychiatry and psychology, a child is generally defined as someone who is __________ years of age or younger

a. 10 b. 13 c. 16 d. 18