Nervous system

Functions of the nervous system?

• communication between various components of the body

• coordination of body functions

• response to our environment

• higher cognitive functions: learning, reasoning, ect

• all of the above

What are the 2 nervous systems

What is the basic functional unit of the nervous system?

What are the 3 basic parts of a neuron?

• dendrite

• cell body

• synapse

• axon

• nucleus

What is the purpose of a myelin sheath?

• allows the axon to communicate with dendrites and the cell body

• insulates nerve axon from surrounding tissue

• stimulates the axon to cause contractions

• increases speed and efficiency of conduction

Multipolar neurons...

• have a single axon with dendrites at one end and a synapse at the other

• have many dendritic processes and one axon

• have one long dendritic process and one axon

pseudounipolar neurons:

• have many dendritic processes and one axon

• have one long dendritic process and one axon

• have a single axon with dendrites at one end and a synapse at the other