NEET MDS Shorts
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PhysiologyThe macula densa is a specialized group of epithelial cells located in the distal convoluted tubule at the junction with the afferent and efferent arterioles. It plays a role in the tubulo-glomerular feedback mechanism to regulate renal blood flow and glomerular filtration rate.
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PhysiologyGlomerular filtrate is essentially protein-free, allowing for the passage of water, electrolytes, and small molecules while retaining larger proteins in the bloodstream.
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PhysiologyAnswer: 2) A-beta fibers have the second highest conduction velocity after A-alpha fibers and are responsible for touch, kinesthetic sense, and pressure sensation, not motor supply to skeletal muscles. A-alpha fibers have the highest conduction velocity and are indeed responsible for motor supply to skeletal muscles.
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PhysiologyThe conversion of 7-dehydrocholesterol to cholecalciferol (vitamin D3) in the skin is initiated by the action of UVB light from sunlight, not by any specific hormone.
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PhysiologyThe primary action of antidiuretic hormone (ADH) in the kidneys is to increase the permeability of water in the collecting tubules and ducts, promoting water reabsorption.
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PhysiologyThe transport maximum for glucose is about 375 mg/min, beyond which it is not fully reabsorbed and begins to appear in the urine.
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Physiology- A fibres are myelinated fibres having fastest rate of conduction
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PhysiologyThe Glomerular Filtration Rate (GFR) is primarily determined by net filtration pressure and the glomerular capillary filtration coefficient (Kf), which reflects the permeability of the glomerular membrane.