MICROANATOMY

Detailed explanation-1: -The autonomic nervous system carries messages between the central nervous system and the internal organs. It is broken into two parts: the sympathetic and parasympathetic divisions. The first acts primarily to arouse the body, the second, to relax and restore the body to normal levels of arousal.

Detailed explanation-2: -One part of the autonomic nervous system is a pair of nerves called the vagus nerves, which run up either side of the neck. These nerves connect the brain with some of our internal organs, including the heart.

Detailed explanation-3: -Specifically the ANS can regulate heart rate, blood pressure, rate of respiration, body temperature, sweating, gastrointestinal motility and secretion, as well as other visceral activities that maintain homeostasis[1-4].

Detailed explanation-4: -Autonomic Neurons Somatic neurons send axons to skeletal muscle, which is usually under conscious control. Visceral efferent neurons-motor neurons whose job it is to conduct impulses to cardiac muscle, smooth muscles and glands. They may originate in the brain or spinal cord (CNS).

Detailed explanation-5: -The autonomic nervous system, also called the visceral efferent nervous system, supplies motor impulses to cardiac muscle, to smooth muscle, and to glandular epithelium. It is further subdivided into sympathetic and parasympathetic divisions.