Digestive and Excretory Sytems

2. The ____ nervous system consists of nerve fibers that send sensory information to the central nervous system and control voluntary actions.
3. The ____ is the part of the brain most closely associated with balance, movement, and muscle coordination.
4. ____ are only able to replicate inside the host's cell and cannot be treated with antibiotics.
7. The ____, which is part of the brain stem, is the connection between the brain and the spinal cord. It controls involuntary actions such as breathing, swallowing, and the beating of the heart.
9. In the ____, food is mixed with gastric acids and pepsin, which break down protein.
10. ____ are disease causing agents.
11. The ____ consists of the brain and spinal cord.
12. Chemical waste, such as urea, excess salts, minerals, and water are filtered from the blood by the ____.
13. The ____ is the major part of the brain thought to be the center of intelligence, responsible for hearing, seeing, thinking, etc.

1. Acids produced in the ____ include lipase, pancreatic amylase, and trypsin.
2. Most digestion takes place in the ____.
5. The ____ is the major connecting center between the brain and the network of nerves. It carries impulses between all organs and the brain and is also the control center for many simple reflexes.
6. ____ are single celled organisms that are responsible for diseases such as strep throat, staph infections, and pneumonia; these illnesses may be treated with antibiotics.
8. The ____ nervous system regulates involuntary activity in the heart, stomach, and intestines.