Autonomic nervous system, Biology

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A.N.S. (Autonimic Nervous System)

Name given by Langley. Controled by Hypothelamus. Partially independent system.

Controls involuntary actions as heart beat, breathing, homeostasis, peristalasis secretion of glands.

So a ganglionic system that controls involuntary action is A.N.S.

Internal organ receive fibres fron 2 sources - sensory & motor.

Nerve of sensory region is originated from dorsal root and nerve of motor region is originated from ventral root.

Visceral motor fibres are divided into 2 parts -

1. Preganglionic - Medullated (white matter)

2. Postganglionic - Non-Medullated (grey matter)


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