Autonomic nervous system, Biology

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)

Posted Date: 10/3/2012 1:59:44 AM | Location : United States







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