Nervous and Digestive systems Crossword

White matter in the brain is made of nerve fibers covered with what?
What are the protective layers of tissue that surround the brain and spinal cord?
Neu ro ns that carry information from the brain and spinal cord to the body parts are (________) neurons
What is the long fiber of a neuron that transmits signals from the cell body to other nerve cells?
What disease of the spinal cord is caused by a virus that destroys motor neurons?
What part of the brain is primarily responsible for thought, memory, voluntary actions, thinking, and intelligence?
What is a serious injury of the nervous system caused by an internal blockage or rupture of a blood vessel in the brain?
What nerve carries sound impulses from the inner ear to the brain?
What gland of the eye produces tears?
What is the transparent front portion of the eye?
What light-sensitive layer of the eye produces the clearest vision?
What is the inner layer of the eye that detects light and produces nerve impulses?
What type of nutrient are starches and sugars?
The small flap of cartilage that keeps food out of the windpipe is the ?
What are the four front teeth on each jaw, which cut food?
What acid does the stomach produce to kill bacteria and help soften foods?