Veterinary Neuropharmacology

DEFINITION

• The autonomic nervous system is  also known as the visceral, vegetative or involuntary nervous system widely distributed throughout the body controlling the so called autonomic or vegetative functions.
• The ANS regulates activity of structures like the smooth muscles, cardiac muscle and secretory glands other than endocrine glands.
• The ANS is responsible for maintaining respiration, blood pressure, heart rate, eye function, gastrointestinal activity, urinary output and virtually all visceral functions within well defined, physiologic limits.
• The ANS mediates the body’s response to emergency situations.
• ANS conserves energy and maintains homeostasis.