¶ … functional relationship of the PNS to the CNS?
The CNS effectively "controls" the PNS, and the PNS' main function is to connect the CNS to the limbs and organs. The PNS transmits nerve impulses produced by the CNS.
List the structural components of the PNS, and briefly describe the function of each component.
The structural components of the PNS are sensory receptors, which receive external stimuli; motor endings, which act to innervate muscle fibers and glands; and nerves and ganglia, which act as pathways for impulses to travel through the PNS.
How many different types of sensory receptors does the nervous system express and briefly, what kind of stimulus does each class respond to?
According to which way you might go about classifying, there are either five different types of sensory receptors or three different types of receptors. The group of five looks like this: 1) mechanoreceptors -- receptors that respond to mechanical...
Nervous System: In order to achieve its function, the nervous system is divided into two major parts i.e. The Central Nervous System (CNS) and Peripheral Nervous System (PNS). The central nervous system is basically made up of the brain and spinal cord and has the main function of receiving information from the body and sending out instructions. While the brain is protected by the skull, the spinal cord is guarded
Nervous System Lymphoma page literature review "Primary Central Nervous System Lymphoma The primary central nervous system lymphoma The primary central nervous system lymphoma is a cancer type that is very rare, and affects the central nervous system i.e. spinal cord, brain, brain coverings, optic nerves, or the eyes. The cancer being referred to as a lymphoma indicates that its cells are lymphocytes which are a white blood cell type. Primary central nervous
The efferent division of the peripheral nervous system carries out the motor commands that are sent from the central nervous system. These commands or signals are then sent directly through the nerve fibers of the peripheral nervous system to the target organs where they will then be signaled to perform the desired action (Martini, Nath, & Bartholomew, 380). The peripheral nervous system can be further broken down as being a
What happens is this over production of neurons results in a kind or "pre-programmed 'suicide' mechanism called apoptosis" (Marino, 2010). So if the brain kills off these neurons on purpose, what happens to the dead neurons? Journalist Melissa Marino asserts that the body must dispose of the dead neurons or else the body's immune system is in trouble. Interestingly, Dr. Bruce Carter (a biochemistry professor) of Vanderbilt has discovered the
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Parkinson's Disease The human central nervous system is a miraculously designed functional piece of our bodies that helps us conduct the most essential tasks to help in our survival. It is therefore very important to investigate and understand how this system functions and operates. In this investigation it is also useful to understand how disease and malfunction of this system are affected. The purpose of this essay is to describe the
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