Terminal buttons are chemicals that carry messages across the synapse to a dendrite of a receiving neuron.

The term psyche, as it was used by the poet Homer, is best translated as

a) "self." b) "soul." c) "mind." d) "consciousness."

Which of the following structures is part of the brain stem?

a. Amygdala b. Medulla c. Thalamus d. Hypothalamus