COVERSTORY |
|||||||||||||||||||||||||||||||||||||||||||||
| Neuro care in Herbal Unani medicine |
|||||||||||||||||||||||||||||||||||||||||||||
| Nervous System is a network of billions of interconnected nerve cells (neurons) that receive stimuli, coordinate this sensory information, and cause the body to respond appropriately. The individual nerve cells transmit messages by means of a complicated electrochemical process. The nervous system is comprised of two main divisions: the central nervous system (CNS) which consists of the Brain and the Spinal Cord; and the peripheral nervous system (PNS), which consists of spinal nerves and cranial nerves. These nerves link the CNS with the body’s receptors and effectors. What are receptors and effectors? The receptors include the various sensory cells and sense organs, whose function is to respond to various types of stimulation. For example, eyes respond to light, and ears respond to sound. The effectors are all of the parts of the body, such as muscles and glands, that respond to instructions from the CNS. Whar are the functions of the CNS? The CNS integrates the information from the PNS and and sends instructions to various parts of the body so that appropriate responses are made to continually changing conditions. The brain is also involved in the processes of thinking, learning, memory, and intelligence. What are the functions of the PNS? The PNS signals changes in the environment, as registered by the receptors, to the CNS. The instructions from the CNS to different parts of the body are also carried by the PNS. Anatomically, the autonomic nervous system (ANS) is part of the PNS. However, in terms of function, the ANS can be considered as a separate system. The ANS is concerned with controlling the body’s involuntary activities, such as the beating of the heart, intestinal movements, and sweating. The actions of the ANS can be modified by the CNS, but it also has a degree of independence. Neurological Disorders There are many disorders that affect the nervous system. The brain is concerned with both physical control of the body and with mental activities, such as reasoning. For disorders of mental activity, the nervous system according to the structures involved.
|
|||||||||||||||||||||||||||||||||||||||||||||