STRUCTURE AND FUNCTION OF ARTERIES, CAPILLARIES AND VEINS What are Arteries? Arteries carry blood away from the heart. They carry oxygenated blood except pulmonary artery which carries deoxygenated blood to the lungs. Arteries have a thick, muscular wall, which has elastic and collagen fibres that resist the pressure of the blood flowing in them. […]
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MICROSCOPE PARTS AND FUNCTIONS A microscope is an instrument used in magnifying and viewing organisms smaller than 0.1mm that is too tiny to be seen by the human eyes. A compound light microscope consists of the following parts: Revolving nose piece: it is used for selecting lens to be used and to be in line
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STRUCTURE AND FUNCTIONS OF THE KIDNEYS The kidneys are organs whose functions are excretion, osmoregulation and regulation of pH. Kidneys are located at the back of the abdominal cavity. Each kidney receives oxygenated blood from renal artery, while deoxygenated blood leaves through the renal vein. Urine is carried by the ureter from the kidney to
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