Neurons, Brain, and Nerves Oh My! A review of the Nervous System


To understand the central nervous system we will start with a microscopic description of what composes nervous tissue. We will then speak about all the macroscopic sections.

Microscopic Description:

Microscopic Description:
There are 2 types of cells which compose nervous tissue of the body: glia and neurons. Neurons are the info processing cells. They speak with each other through chemical and electrical means. Electrical communication in the neurological system is achieved through "action potentials". Action potentials are converted into a chemical idea at the "synapse", and that is the spot where two various neurons communicate with one another.
Glia, on the contrary, will be the supporting cells. You will find many different types of glia, each one of which have various functions. For instance, glia identified as oligodendrocytes help insulate neuronal axons so that electrical communication of spinal cord and the mental faculties is quick & efficient. Astroctyes, an additional kind of glia, are liable for ensuring the blood brain barrier. Additionally, they maintain the integrity of the substance atmosphere around neurons. Another sort of glia, ependymal cells, line the ventricles, or substance filled cavities of the brain. It's crucial to realize that there are various other types of glia with very important functions.
When we combine a number of millions of neurons as well as glia into structural devices we arrive at best adderall alternative over the counter grounds for defining the central nervous system at a macroscopic level.

Macroscopic Description:

Macroscopic Description:
The central nervous system is usually divided into 2 distinct divisions based on anatomical location. These divisions are definitely the central nervous system (CNS) along with the peripheral nervous system (PNS).

CNS: Brain and Spinal Cord

CNS: Brain along with Spinal Cord

PNS: somatic and Autonomic Divisions