"Action potential 2" Essays and Research Papers

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    The Five Sense Organs in Human Beings The sense organs — eyes‚ ears‚ tongue‚ skin‚ and nose — help to protect the body. The human sense organs contain receptors that relay information through sensory neurons to the appropriate places within the nervous system. Each sense organ contains different receptors. • General receptors are found throughout the body because they are present in skin‚ visceral organs (visceral meaning in the abdominal cavity)‚ muscles‚ and joints. • Special receptors include

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    Animal Tissues

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    QUILONA‚ KLARISSE JANE A. BSP-1B Animal Tissues 1. Epithelial Epithelial tissue is made of closely-packed cells arranged in flat sheets. Epithelia form the surface of the skin‚ line the various cavities and tubes of the body‚ and cover the internal organs. Subsets of Epithelia Epithelia that form the interface between the internal and external environments. Skin as well as the lining of the mouth and nasal cavity. These are derived from ectoderm. Inner lining of the GI tract‚ lungs‚ urinary

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    NeuroCore Sales Broschure

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    Neurocore Diagnostics WHAT THE PATIENT CAN EXPECT A technician places electrodes‚ similar to EKG leads‚ to the patient’s legs or arms. Then a low intensity electric current is directed over the nerves that lead to those electrodes so that a computer can record and evaluate the consequent nerve impulse for velocity‚ onset and amplitude. Neuropathies are caused by damage to the nerves axon and/or damage to the myelin sheath surrounding the nerve. If a response is slower than normal‚ damage

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    Multiple Sclerosis‚ also known as MS‚ is a disease causing demylination of the white matter in the spinal cord and brain. The nerve damage slows‚ blocks or distorts transmission of nerve impulses. MS is characterized by periods of exacerbation and remissions. The crippling disease is a major cause of chronic disability in young adults. It usually becomes symptomatic between the ages of twenty and forty with twenty-seven being the average. Prognosis varies greatly from person to person. MS can progress

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    Wear Nerve Lab Report

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    There are three main nerves in your hand radial nerve‚ median nerve‚ and ulnar nerve. Each one of these gives movement and feeling to different areas of the hand. The ulnar nerve is one of the three main nerves in your arm. It travels from your neck down into your hand. The most common place for this nerve is behind the inside part of the elbow. The radial nerve descends down the arm with in the triceps with in the upper arm. Then moves down the arm within the humerus also known as the radial

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    Through the years scientists have discovered that there is more to the brain than previously thought. They have learned that inside the brain there is a synapse or an area that is open between the axon of a nerve and the dendrite of another nerve. The synapse entails the neurotransmitters‚ mitochondria‚ postsynaptic ending that has receptors sites for the neurotransmitters‚ and a synaptic cleft. When alcohol is consumed and reaches the brain‚ it can alter neuron membranes‚ ion channels‚ enzymes

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    Neurotransmitters Neurotransmitters are chemicals made by neurons and used by them to transmit signals to the other neurons or non-neuronal cells (e.g.‚ skeletal muscle; myocardium‚ pineal glandular cells) that they innervate. The neurotransmitters produce their effects by being released into synapses when their neuron of origin fires (i.e.‚ becomes depolarized) and then attaching to receptors in the membrane of the post-synaptic cells. This causes changes in the fluxes of particular ions across

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    The amino acids glutamate and aspartate activate this primary taste sensation Umami Which papillae do not contain taste buds Lingual Circumvallate Filiform++ Fungiform foliate High pitched sounds will cause vibration of the basilar membrane most vigorously at the helicontrema t/f falseeeee The vitreous body fills the space behind the lens of the eye and contributes most to the glove-like appearance of the eyeball t/f Both the cornea and the lens are capable of refraction‚ but only the lens is capable

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    Research Task: A document giving examples‚ of the kinds of influences that affect children and young persons’ development including: (a) Personal factors (health)‚ (2.1) (b) External factors (environment)‚ (2.2) Answer: (a) Personal factors that influence/affect children and young person’s development (health) • Disabilities such as blindness‚ deafness‚ and other physical handicaps can cause learning loss as the child therefore is physically hindered and as we know all areas of development

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    Astrocytes

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    Within the brain and spinal cord are the most important cells. Astrocytes are glial cells and have earned their name because of their star shaped figure. They make up a large population of cells in the brain and have a multitude of functions in the Central nervous system. The roles of the various types astrocytes include preserving‚ supporting‚ and mending nervous tissue. There are known to be three main kinds of astrocytes which are Protoplasmic‚ Fibrous‚ and Radial. Protoplasmic astrocytes

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