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: List the differences between cranial and spinal nerves
The basic difference between the cranial nerves and the spinal nerves is the role they play, in helping our bodies to function properly. [ The body has what is called a peripheral nervous system consisting of more than 100 billion nerve cells, which run all throughout our body, making connections with our brain, as well as other parts of the body, and sometimes with each other. The peripheral
nervous system is composed of two systems the somatic and autonomic nervous system. These nerves connect with both the brain and the spinal cord. Our muscles are controlled by voluntary and sensory receptors in the skin, this is an example of the somatic system. The autonomic system connects the brain stem and the spinal cord to the internal organs, and also regulates the body processes, like heart rate and blood pressure, stomach acid, and the speed of food travelling through our digestive systems. The autonomic nervous system is divided into sympathetic and parasympathetic divisions. Each has a job to do within the body. The sympathetic division helps us to deal with stressful or emergency situations. They help us to know, when to fight and when to take flight. The parasympathetic division helps the body to function, in normal situations. Both divisions regulate our pulse, breathing and blood pressure to keep them stable. The cranial nerves connect our brain to our eyes, ears, nose, throat and other parts of our head, neck and trunk. There are twelve (12) pairs of cranial nerves. The nerves, which connect the spinal cord to with other parts of the body are called spinal nerves. The brain communicates or connects with other parts of the body through the spinal nerves. We have thirty-one (31) pairs of spinal nerves. Spinal nerves and cranial nerves are connected with the somatic and the autonomic parts of the peripheral nervous system. Some nerves are sensory nerves and other nerves are motor nerves, depending upon their function within the body. Read more: ]
Expert answered|vanilla2bean|Points 185|
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Asked 6/7/2012 7:36:31 PM
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Asked 5/31/2012 7:16:34 PM
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List the steps in chemical synaptic transmission.
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Asked 5/31/2012 7:21:54 PM
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List the types of neuroglia and their functions.
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Asked 5/31/2012 7:22:15 PM
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List the steps in chemical synaptic transmission
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Asked 5/31/2012 7:45:56 PM
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A histogram is drawn by breaking up the data in groups along the bottom of the graph called "classes". Why would you NOT want to have the classes overlap? In other words, what would happen if instead of saying 82 - 84 then 85 - 87 you had 82 - 85 then 85 to 87?
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Updated 6/2/2012 4:01:26 AM
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If the classes overllaped, some of the data (from the overlaps) would be shown on the graph twice and so the graph would not give a clear picture. For example, if you had 82 - 85 then 85 to 87, all the data for 85 would appear in both entries on the graph.
Added 6/2/2012 4:01:26 AM
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