The clear dome on the front of the eye is best called

The gray matter of the cerebrum is called

The fluid found in the cavities of the brain is blood.

The two cerebral hemispheres are connected by the 

The part of the brain that receives proprioception information about the position of the body, and smooths and coordinates muscle actions is the 

The protective membranes of the central nervous system are best called

Depolarization occurs as Na+ gates open letting sodium ions into the cell.

Every year the U.S. loses multiple millions of dollars due to 15% of the population dealing with __________.

______________ are a type of chemical that _______ the activity of the central nervous system.

Greg regularly only sleeps 6 hours a night and drives long distances often. Due to his lack of sleep he is 2x more likely to _____________.