The hepatitis B vaccination is administered for the purpose of protecting the worker from _______.

In the frontal lobe, upper motor neurons that control voluntary movement are located mainly on the:

a. Primary motor cortex b. Prefrontal cortex c. Premotor cortex d. Supplementary motor cortex

Specialized chemicals that conduct electrical impulses between nerve cells or between a nerve cell and its target tissue are called ____________________________________________

Fill in the blank(s) with correct word