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from article Pain
Neurophysiology of incoming pain. Sensation from peripheral receptors travels along specific pain nerves, and is modulated throughout the spinal cord and brain. (Copyright © McGraw-Hill Education)
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from article Virus, defective
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from article Virus, defective
Electron micrographs of virion and defective interfering particles of vesicular stomatitis virus. (a) Defective interfering particle with a 50% deleted RNA. (b) Defective interfering particle with an 85% deleted RNA. (c, d, f) Defective interfering…
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from article Lipoprotein
Structural model of a lipoprotein.
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from article Psychosis
A colorized magnetic resonance imaging (MRI) scan of a human brain. Psychosis is a defective mental state in which there is a critical derangement of the mind (brain) involving abnormal contact with reality. (Credit: Govind Bhagavatheeshwaran and…
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from article Vitamin K
Vitamin K. (a) Natural forms. (b) Regeneration of the hydroquinone for γ-carboxyglutamate (Gla) synthesis; Glu = glutamic acid. Vitamin K functions by carboxylating certain glutamate residues in a few proteins. With each carboxylation reaction, a…
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from article Drug delivery systems
A transdermal nicotine patch is a noninvasive method of controlled drug delivery. (Copyright © Plush Studios/Bill Reitzel/Blend Images)
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from article Drug delivery systems
Three levels of polymer drug delivery. (a) A polymer is used as carrier of drugs. (b) The drugs are connected to the polymer via cleavable peptide linkers. (c) A homing device is added to target specific tissue types. (Credit: Jan van Hest;…
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from article Hypertension
A blood pressure monitor (sphygmomanometer) for home use to detect hypertension. This easy-to-use device displays levels of the systolic and diastolic blood pressure (mmHg) and pulse readings (pulses per min). (Credit: Roel Smart/Getty Images)
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from article Fetal alcohol spectrum disorder
Abnormal facial features, including small eye openings and a lack of distinction (or a groove) in the area from below the nose to the upper lip, are common characteristics seen in individuals with fetal alcohol spectrum disorder. (Copyright ©…
