What is the function of the dorsal roots of the spinal cord?A. They receive sensory input.B. They control motor output.C. They convey information from the brain to the spinal cord.D. They convey information from the spinal cord to the brain.

Studies of the infant brain show signs of what scientists call synaptic pruning. What occurs during this process? a. The brain creates additional neural connections by removing parts of the surrounding bone. b. Unused synaptic connections and nerve cells are cleared out to make way for new cells. c. New cells work to “rewrite” old cells and ultimately change their functioning. d. New cells will not develop until the body makes sufficient physical space within the brain.

According to Libet’s study, what is the order of events in a voluntary movement?A. People form an intention, then activity begins in the premotor cortex, and finally the movement starts.B. People form an intention at the same time that activity begins in the premotor cortex, and a bit later, the movement starts.C. Activity begins in the premotor cortex, and a bit later, people are aware of forming an intention, and finally the movement starts.D. Activity begins in the premotor cortex, and a bit later, people are aware of forming an intention, and simultaneously the movement starts.

Which nerve is responsible for taste, as well as salivation, in the anterior oral cavity? a. facial b. glossopharyngeal c. vagus d. hypoglossal