To understand the central nervous system we'll start with a microscopic description of what composes nervous tissue. We'll then discuss the different macroscopic sections.

Microscopic Description:

Microscopic Description:
There are two types of cells which compose nervous tissue of the body: glia and neurons. Neurons are the info processing cells. They get in touch with each other through electrical and chemical means. Electrical communication in the central nervous system is accomplished through "action potentials". Action potentials are transformed into a compound point best adderall alternative at walgreens the "synapse", which is the area where two different neurons communicate with each other.
Glia, on the contrary, are definitely the supporting cells. There are many different types of glia, each one of which have various functions. For instance, glia known as oligodendrocytes help insulate neuronal axons hence electrical communication of the brain and spinal cord is fast and efficient. Astroctyes, an additional kind of glia, are accountable for ensuring the blood brain barrier. They also retain the integrity of the chemical environment around neurons. Another kind of glia, ependymal cells, line the ventricles, or perhaps substance filled cavities of the human brain. It's important to realize that there are some other types of glia with very important functions.
When we put together several millions of glia as well as neurons into structural products we arrive at the grounds for defining the neurological system at a macroscopic level.

Macroscopic Description:

Macroscopic Description:
The nervous system is generally divided into two distinct divisions depending on anatomical location. These sections are definitely the central nervous system (CNS) along with the peripheral nervous system (PNS).

CNS: Brain and Spinal Cord

CNS: Spinal Cord along with Brain

PNS: somatic and Autonomic Divisions