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    Brain Vesicles

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    Last there is the brain. The brain is the control focal point of the human body. The human brain stores data, corresponding that data with other data to offer the body some assistance with making selections and to have the body put the decisions into actions. The brain and spinal cord are created from the neural tube. The neural tube then extends causing the tube to then makes three locales called the primary brain vesicles: prosencephalon, mesencephalon, and the rhombencephalon. The…

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    Nervous tissues have neurons and nerves that support cells. Its function is to send impulses to different areas of the body. It reacts to stimuli and conducts impulses to different organs in the body that carry a response to the stimulus. Nerve tissues are in the brain, spinal cord and peripheral nerves which are all made up of neurons. http://www.msnucleus.org/membership/html/k-6/lc/humanbio/4/lchb4_3a.html Cardiovascular system The cardiovascular system is made up of your heart, your blood…

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    Lafora disease is a rare, inevitably fatal, autosomal recessive, progressive myoclonus epilepsy. Being autosomal recessive, the disease is most commonly seen in communities that practice consanguinity. The onset of the disease occurs within the first two decades of life, with an average life span of 10 years following diagnosis (Monaghan & Delanty, 2010). Lafora disease is characterized by myoclonic and tonic-clonic seizures and neurological dysfunction, such as dementia (Monaghan & Delanty,…

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    Brain Vs Brain

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    The body and mind undertake many activities. However, these activities are mostly controlled by the central nervous system (CNS). The brain and the spinal cord are the main components of the central nervous system. The brain is divided into three portions: the hindbrain which houses units of the brain that controls heart and sleeping patterns, the midbrain which links the forebrain to the hindbrain and also controls the heart rate and sweating, and the forebrain which controls our voluntary…

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    Spinal Cord Injury Report

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    The human body contains a bundle of nerves which serve as a communication board for the motor functions of the body, as well as its sensory system (F. Sarhan, D. Saif, A. Saif, 2013). The spinal cord encompasses 31 different nerves (F. Sarhan, D. Saif, A. Saif, 2013). When there is damage to one or any of the spinal cord nerves, this can comprise the relay of the motor and sensory messages coming to and from the brain, causing major deficits in these areas (F. Sarhan, D. Saif, A. Saif, 2013).…

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    Amyotrophic Lateral Sclerosis is a progressive disorder that is inherited or acquired. It affects motor neurons. Motor neurons are cells that are in the brain, brain stem and spinal cord and their function is to carry an electrical signal to a muscle and trigger it to contract or relax. Medical terminology, a means without, my is muscle and trophic is nourishment. Lateral is pertaining to the side/direction that is affected and sclerosis is abnormal condition of hardening. It was originally…

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    Microglial Cells

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    considering the millions of connections and neurons in the body. However perhaps even more impressive is the ability of the nervous system to restore neuronal connections after injury. This is particularly advanced in frogs, fish and invertebrates as once an axon is cut in the central nervous system, the regeneration allows full functional recovery whereas in the mammalian central nervous system full recovery is not always possible. Unfortunately, the reason for the lack of molecular signals…

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    Central Nervous System

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    size ranges from 1 mm to 1 m, and each axon synapses with 1 000 to over 10 000 neurons. Every axon’s cytoplasm (or axoplasm) contains neurofibrils, neurotubules, small vesicles, lysosomes, and mitochondria. It cannot create proteins because it has no rough endoplasmic reticulum. A plasma axolemma (cell membrane) surrounds the entire axon to protect it. In a multipolar neuron, the axons’s base is attached to the soma at a thickened cone-shaped region called the axon hillock. Nerve impulses occur…

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    Important Vocabulary (highlighted in the handout): Stimulus, neurons, dendrites, neurotransmitters, axon, myelin, action potential, graded potential, transmembrane potential, neuroglia, cerebrum, spinal cord What is the central nervous system? It’s a system which consists of the nerves in the brain and spinal cord. This system only makes up about 3% of a human’s body weight but serves a vital function, gathering information about and reacting to its environment and any stimulus. Don’t Shoot the…

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    secretion of special chemical molecules called neurotransmitters. Neuroglia provide a variety of functions for brain tissue and support the metabolic and signaling functions of the neurons. Certain types of neuroglia, myelin, serve as an insulation around axons. 4. Neuroglia function depends on the specific type of neuroglia, but they are not sensitive the stimuli and do not generate or conduct nerve impulses. A. Astrocytes: is a star shaped cell that has many processes extending from its cell…

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