Transmission at the synaptic junctions between preganglionic and postganglionic neurons and between the postganglionic neurons and the autonomic effectors are chemically mediated. The principal transmitter agents involved are acetylcholine and norepinephrine.
The sympathetic nervous system makes up part of the autonomic nervous system, It is also known as the involuntary nervous system. It can regulate important bodily functions such as heart rate, blood pressure, pupil...
Nervous system consists central nervous system (Brain and Spinal cord), the peripheral nervous system (Cranial nerves and Spinal nerves), Autonomic nervous system (Sympathetic nervous system and parasympathetic nervous system).
The nervous system is highly developed in vertebrates, especially in man, The nervous system and the endocrine glands work together to control all the functions of human body systems, They receive the information in...
