Central Nervous System Research Paper
The Central Nervous System (CNS)
The CNS is responsible for coordinating and controlling the activities of our body such us control of the muscles and the mental activity. The main organs of the CNS is the brain, spinal cord, and nerves. These organs mostly consist of Nervous Tissues.
http://www.nlm.nih.gov/medlineplus/ency/images/ency/fullsize/19588.jpg
Nervous Tissues
Nervous tissues are made up of two main types of cells: nerve cells/neurons and neuroglia. The main functions of nervous tissues are to react to stimuli and generate impulses to various organs in the body.
http://www.occc.edu/deanderson/dennis-tutorial/dennis-jpeg/Nervous%20Tissue-low%20mag%20D-1%20copy
Nerve cells and Neuroglia
Neuroglia do not transmit nerve impulses themselves, but they are important to the neurons because they are responsible for supporting them by providing the nutrition they need. They are also responsible for the protection of neurons, destroying pathogens, and removing dead neurons. Neuroglia are found surrounding neurons. …show more content…
http://www.biologycorner.com/anatomy/tissues/tissue_images/nervous.gif
Nerve cells are sensitive to various types of stimuli such as temperature, pressure, etc.
They generate and send nerve impulses to other nerve cells. This information is passed onto other cells through the synapses. Synapses are gaps or junctions between two nerve cells. At the synapse, one nerve cell will send a signal to another.
http://images.iop.org/objects/phw/news/15/9/18/neuron.jpg
Nerve Cell organelles
A nerve cell shares many of the same organelles that most other cells in the body have. They have a cell body which consist of:
A cytosol, a watery fluid inside the cell which contains enzymes responsible for metabolism of the cell
A nucleus, which contains the information for cell development and protein synthesis necessary for survival.
A nucleolus, which is involved in producing ribosome.
A golgi apparatus/golgi body, for packaging peptides and proteins.
Rough endoplasmic reticulum (ER) and smooth ER, which is responsible for transportation of materials within the cytoplasm. It may have ribosomes for protein synthesis (rER) or no ribosomes at all (sER).
Nissl bodies, a large granular body found in neurons and are the site of protein synthesis.
Mitochondria, which is important for the cell's energy supply in the form of ATP. Nerve cells need a lot of energy because the brain has one of the most metabolically active tissues in the body. The energy stored in ATP is used to fuel most of the biochemical reactions of the nerve cell.
The cell body has extensions called dendrites and axons. Dendrites bring information towards the cell body while the axon take information away from the cell body through synapses to the dendrites of other nerve cells. Dendrites are short and numerous branch out from the cell body while there is only one axon that branches out from the cell body but is significantly longer.
The CNS is responsible for coordinating and controlling the activities of our body such us control of the muscles and the mental activity. The main organs of the CNS is the brain, spinal cord, and nerves. These organs mostly consist of Nervous Tissues.
http://www.nlm.nih.gov/medlineplus/ency/images/ency/fullsize/19588.jpg
Nervous Tissues
Nervous tissues are made up of two main types of cells: nerve cells/neurons and neuroglia. The main functions of nervous tissues are to react to stimuli and generate impulses to various organs in the body.
http://www.occc.edu/deanderson/dennis-tutorial/dennis-jpeg/Nervous%20Tissue-low%20mag%20D-1%20copy
Nerve cells and Neuroglia
Neuroglia do not transmit nerve impulses themselves, but they are important to the neurons because they are responsible for supporting them by providing the nutrition they need. They are also responsible for the protection of neurons, destroying pathogens, and removing dead neurons. Neuroglia are found surrounding neurons. …show more content…
http://www.biologycorner.com/anatomy/tissues/tissue_images/nervous.gif
Nerve cells are sensitive to various types of stimuli such as temperature, pressure, etc.
They generate and send nerve impulses to other nerve cells. This information is passed onto other cells through the synapses. Synapses are gaps or junctions between two nerve cells. At the synapse, one nerve cell will send a signal to another.
http://images.iop.org/objects/phw/news/15/9/18/neuron.jpg
Nerve Cell organelles
A nerve cell shares many of the same organelles that most other cells in the body have. They have a cell body which consist of:
A cytosol, a watery fluid inside the cell which contains enzymes responsible for metabolism of the cell
A nucleus, which contains the information for cell development and protein synthesis necessary for survival.
A nucleolus, which is involved in producing ribosome.
A golgi apparatus/golgi body, for packaging peptides and proteins.
Rough endoplasmic reticulum (ER) and smooth ER, which is responsible for transportation of materials within the cytoplasm. It may have ribosomes for protein synthesis (rER) or no ribosomes at all (sER).
Nissl bodies, a large granular body found in neurons and are the site of protein synthesis.
Mitochondria, which is important for the cell's energy supply in the form of ATP. Nerve cells need a lot of energy because the brain has one of the most metabolically active tissues in the body. The energy stored in ATP is used to fuel most of the biochemical reactions of the nerve cell.
The cell body has extensions called dendrites and axons. Dendrites bring information towards the cell body while the axon take information away from the cell body through synapses to the dendrites of other nerve cells. Dendrites are short and numerous branch out from the cell body while there is only one axon that branches out from the cell body but is significantly longer.