Thursday, February 11, 2010

Neurology - A Review Part I

GENERAL ORGANIZATION

CNS stands for Central Nervous System, which consists of the following:

* Cerebrum
* Cerebellum
* Brain Stem
* Spinal Cord

In addition to this, there are also structures that sound scary situated between the cerebrum and brainstem namely:

* Diencephalon (which includes all names ending with "thalamus" : thalamus, hypothalamus, epithalamus and subthalamus)

* Basal Ganglia (which includes caudate nucleus, globus pallidus, putamen, claustrum and amygdala)

Neuron - basic functional unit in the CNS where the electrophysiological impulses would travel from the dendrites into the cell body and axon.

Synapses - connections where information is chemically transmitted from one neuron to another.

Pathway - this is a series of communicating neurons.

There are various names for a budle of communicating neurons or pathway INSIDE the CNS namely - tract, peduncle, fasciculus and lemniscus.

BUT, when OUTSIDE the CNS these bundle of communicating axons is called Nerves.

to be continued...

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