Which is part of the autonomic nervous system? a. peripheral b. aphasic c. central d. parasympathetic

D. Parasympathetic

Explanation:

The parasympathetic nervous system is responsible for controlling all involuntary functions and acts. The nerves that comprise it are born in the brain, and are part of the oculomotor, facial, glossopharyngeal and vagus cranial nerves. In the spinal cord it is located at the level of the sacral roots of S2 to S4. The neurotransmitter of this system is acetylcholine. The nerve centers that begin preganglionic fibers are located in the brain and in the sacral plexus in the medulla.

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.