and to prevent further injuries. For example. if the subject touches a hot boiling kettle their initial reactions steps are: 1) somatic receptor received stimuli a "danger" stimul 2) afferent nerve senses signals to CNS 3) integrate information to decide what to do next 4) efferent nerve carry motor impulse ti muscle 5) effectors then will quickly remove hand away from kettle to aggravate anymore pain. In contrast‚ slow reaction time may come with unaffordable consequence. the given example is not
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Krabbe disease is a disorder inherited from parents‚ which destroys the myelin coat of nerve cells throughout the nervous system and the process is called demyelination. Demyelination inhibits the transmission of nerve impulses and that hinders the communication of the brain and the body and that results in disability (Mayo Foundation for Medical Education and Research‚ 2016). Dr. Knud. H.Krabbe diagnosed this disorder in 1916 (Arizona Board of Regents‚ 2015). Krabbe disease is a body recessive disorder
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The cardiovascular system consists of : heart (심장)‚ and vessels (혈관)‚ arteries (동맥)‚ capillaries (모세혈관) and veins (정맥). A functional cardiovascular system is vital (필수적인) for supplying oxygen and nutrients to tissues and removing wastes from them. Paths of Circulation: Pulmonary(폐의) Circuit : carrying blood to the lungs and back 1. The pulmonary circuit is made up of vessels that convey blood from the right ventricle to the pulmonary arteries to the lungs‚ alveolar capillaries‚ and pulmonary veins
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disaccharides) and antibacterial enzymes. Saliva dissolves some food. taste buds- identify the type and quality of food. Food dissolves in saliva and moves into the taste pores. Receptor cells sense the taste and pass on the message to attached nerve cells. The more you have‚ the more sensitive you are to the taste. tongue- pushes food together into a bolus for swallowing. Pharynx = cavity connecting the mouth and nose to the esophagus and trachea. It is a structure that belongs
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Connective Epithelial‚ and muscular tissues. From Tissues to organs Cells combine to form tissues and tissues combine to form organs. Cells combine to form four primary tissues: - Epithelial tissue - Connective tissue - Muscle tissue - Nerve tissue BACKGROUND:A tissue is a group of cells that have a similar shape and function. Different types of tissues can be found in different organs. In humans‚ there are four basic types of tissue: epithelial‚ connective‚ muscular‚ and nervous
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the dopamine‚ acetylcholine‚ gaba and glutamate. Plus‚ I will analyze their function‚ and evaluate their impact on physical and mental behavior. Neurotransmitters are stored in minute sac called vesicles located at the end of axons. When an impulse‚ reaches the
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the myelin sheath. A many-layered white‚ lipid and protein covering produced by the neuroglia that is called the myelin sheath surround the axons of most neurons. The sheath electrically insulates the axon of a neuron and increases the speed of nerve impulse conduction. Axons with such a covering are said to be myelinated whereas those without it are said to be unmyelinated. Two types of neuroglia produce myelin sheaths: neurolemmocytes and oligodendrocytes. In the PNS‚ neurolemmocytes form myelin
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There are many ways in which substances can move across the cell membrane and in which then helps in the function of the body (cells‚ tissues and organs) overall. There are 3 processes that a substance can move across the membrane‚ theses are diffusion (simple and facilitated)‚ osmosis and active transport. Both diffusion and osmosis are passive processes‚ which mean they do not need energy to occur‚ whereas active transport does require energy. All three processes are involved in many functions
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as a transcription factor‚ therefore it must be produced and released before new protein synthesis can occur (Zerboni et. al‚ 2014). The virus codes for 3 immediate-early (IE) proteins that also play a role in regulating viral transcription by inhibiting the activity of interferon-alpha (Cohen‚ 2010). These immediate early regulatory proteins are encoded by alpha genes and help regulate beta genes‚ are present in open reading frames 4‚ 61‚ 62 and 63 (Ancton‚ 2012). These beta genes encode proteins
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difference in skin and blood temperature from the ‘set point’ e.g. 36.7 °C‚ will be recognised as an error. The anterior hypothalamus recognises this and has a heat loss centre that sends messages to the effectors which are nerve impulses and hormonal messages. These impulses and messages are released to the required area to signal
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