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 The nervous system of the human being is responsible for sending, receiving, and processing nerve impulses throughout the body. This series of articles explains the nervous system in a more basic way.
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Sub-Categories:
Nerves of the Body
Articles:
What is the Nervous System?
by Dr. Gary Farr 6/24/2002
The nervous system is composed of those elements within the animal organism that are concerned with the reception of stimuli, the transmission of nerve impulses, or the activation of muscle mechanisms. It could be considered as the master control unit inside your body. We discuss the nervous system in detail.
Pain
by Dr. Gary Farr 6/24/2002
Pain, unpleasant sensory and emotional experience caused by real or potential injury or damage to the body or described in terms of such damage. Scientists believe that pain evolved in the animal kingdom as a valuable three-part warning system. First, it warns of injury. Second, pain protects against further injury by causing a reflexive withdrawal from the source of injury. Finally, pain leads to a period of reduced activity, enabling injuries to heal more efficiently.
Reflexes
by Dr. Gary Farr 6/24/2002
A reflex is an involuntary response to a stimulus by the animal organism. In its simplest form, it consists of the stimulation of an afferent nerve through a sense organ, or receptor, followed by transmission of the stimulus, usually through a nerve center, to an efferent motor nerve, resulting in action of a muscle or gland, called the effector.
The Brain
by Dr. Gary Farr 6/24/2002
The brain is the portion of the central nervous system contained within the skull. The brain is the control center for movement, sleep, hunger, thirst, and virtually every other vital activity necessary to survival. It is important to note that although human emotions—including love, hate, fear, anger, elation, and sadness—can be influenced by the brain, they are ultimately controlled by the mind. The brain and the mind ARE NOT THE SAME.
The Cranial Nerves
by Dr. Gary Farr 6/24/2002
Cranial nerve I is the olfactory nerve, the nerve responsilbe for the sense of smell. Cranial nerve II is the optic nerve, the nerve responsible for sight. Both are discussed.
The Meninges
by Dr. Gary Farr 6/24/2002
The meninges, (singular meninx), are three membranous envelopes—the pia mater, the arachnoid, and the dura mater—that surround the brain and spinal cord. Cerebrospinal fluid fills the ventricles of the brain and the space between the pia mater and the arachnoid. The chief function of meninges and cerebrospinal fluid is to protect the central nervous system.
The Spinal Cord
by Dr. Gary Farr 6/24/2002
The spinal cord, that part of the central nervous system contained within the vertebral or neural canal. In the adult human it extends from the base of the skull to the second lumbar vertebra.
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