What constitutes the peripheral nervous system ? What are its function?

What constitutes a stele?

What constitutes smog?

What constitutes the central and peripheral nervous systems? How are the components of central nervous system protected?

What constitutes the cambial ring ?

Units of nervous system are

Units of nervous system are

What is epithelial tissue? What are its functions?

Name the two components of peripheral nervous system.

What is the electron transport system, and what are its functions?

What is not true about the sympathetic nervous system ?