N ERVOUS S YSTEM. T HE N ERVOUS S YSTEM N ERVOUS S YSTEM The brain and spinal cord The brain is the location of most information processing. The spinal.

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Presentation transcript:

N ERVOUS S YSTEM

T HE N ERVOUS S YSTEM

N ERVOUS S YSTEM The brain and spinal cord The brain is the location of most information processing. The spinal cord is the main pathway to and from the brain.

S PLIT OF THE N ERVOUS S YSTEM

C ENTRAL N ERVOUS S YSTEM The Central Nervous System (CNS) consists of the brain and the spinal cord.

P ERIPHERAL N ERVOUS S YSTEM Consists of Sensory and Motor Nerves connect the central nervous system to the rest of the body Peripheral means “outer region” The system is subdivided into the somatic and autonomic nervous systems.

PNS

S OMATIC The division of the peripheral nervous system that controls the body’s skeletal muscles Contains the motor nerves needed for the voluntary muscles

A UTONOMIC Monitors the autonomic functions Controls breathing, blood pressure, and digestive processes Divided into the sympathetic and parasympathetic nervous systems

A UTONOMIC

S YMPATHETIC The part of the autonomic nervous system that arouses the body to deal with perceived threats Fight or flight response

P ARASYMPATHETIC The part of the autonomic nervous system that calms the body Brings the body back down to a relaxed state

T O REMEMBER THE DIFFERENCE … What does a para chute do?

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