By the 8th day after conception, the fertilized egg has approximately 100 cells and is known as the ______

Why are there two routes to carry emotional information around the brain?

a) The shorter subcortical route conserves time in situations in which we must react quickly. b) Two separate routes ensure the information will get through if one route is blocked for some reason. c) A number of emotions may occur at one time and the dual routes insure speedy transmission of information. d) The cortical route is a remnant of our early ancestors, who did not have the intellectual capability to process sophisticated emotions.

What is the longer, cortical route taken by a neural impulse that begins with an unusual sound you hear as you enter your apartment at night?

a) thalamus, cortex, amygdala b) thalamus, hypothalamus, cortex c) hypothalamus, amygdala, cortex d) cortex, thalamus, corpus callosum