Psych 3.3 Parts of the nervous system.

Nervous system

It a complex system of nerves, the brain, and spinal cord. It is split into two parts the central nervous system, and the peripheral nervous system.

Central nervous system

Includes the brain and the spinal cord, interacts will all processes in the body.

peripheral nervous system

Includes the rest of the bodies nerves, communicates between the body and the brain.

somatic nervous system

Part of the peripheral nervous system which governs voluntary moment.

Autonomic Nervous system

Part of the peripheral nervous system which is broken into parasympathetic and sympathetic nervous systems. It governs involuntary movements.

Sympathetic Nervous System

Fight or flight response

Parasympathetic Nervous System

returns our body to a state of calm homeostasis.

Homeostasis

state of equilibrium, or balance is maintained in the body.

Fight or flight response

allows the body to get energy reserves in order to fight off or run away from threats.

Reflex Arc

Basic form of reflexes, which is involuntary movement and impulses.

Sensory Neurons

Carrying sensory information to the CNS.

Motor Neurons

carrying instructions from the CNS to the muscles.

Interneurons

Neurons which are located in between the sensory, and motor neurons.

Efferent Neurons

They are motor neurons

Afferent Neurons

they are sensory neurons.