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Cross section of a collecting duct, located in the medullary region of the kidney. It is lined by a simple columnar epithelium.
plant Pine Young Staminate Cone L.S. under light mircoscope with white background
Host cells with spores (mold) are inside wood under the microscope for education.
Micro world
ascaris megalocephala cross section under the microscope showing its cuticle, intestine and ovaries - optical microscope x100 magnification
Squash preparation of  onion root tip cells stained to reveal chromosomes,  Bright field illumination, light microscopy.  This image was taken with the X40 objective lens.  Depth of focus is extremely low at this magnification.  Smaller apertures give greater depth of focus, but image quality deteriorates and resolution is greatly reduced.  The aperture in this image was optimised for contrast and resolution. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
Longitudinal section of a young pinecone showing internal structure, 10x magnification, hematoxylin stain.
Natural agate surfaces, suitable for backgrounds and wallpapers.
Testicle stained with the Mallory phosphotungstic hematoxylin. This method highlights the meiotic primary spermatocytes of the germinal epithelium.
Tongue L.S. under light microscope with white background
Lily leaf c.s. under microscope
Burkitt lymphoma is a form of non-Hodgkin's lymphoma in which cancer starts in immune cells called B-cells. Recognized as a fast growing human tumor, Burkitt lymphoma is associated with impaired immunity and is rapidly fatal if left untreated.
Backgrounds of Characteristics Tissue Tongue, Small intestine of Cat and Tissue of Esophagus rabbit under microscope.
Squash preparation of stained onion root tip cells showing various stages of mitosis. Differential interference contrast optics on a Leica microscope, Image taken with the X40 objective lens.  Depth of focus is extremely shallow (just a few microns).  Differential interference contrast results in an optical slice horizontally through the specimen providing maximum possible resolution at this magnification and good contrast. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
Cotton plant root, under the light microscope. Longitudinal section through the root of Gossypium hirsutum, upland or also Mexican cotton. Light micrograph at 20X magnification. Isolated, over white.
Colorful seamless pattern with Crystal stones.
Nerve or nervous tissue (spinal cord). Optical microscope, magnification X200.
Micro world
Cerebellar granule cells, light micrograph. Cerebellar granular layer stained with Golgi silver chromate showing the abundance of granule cells. They have a very small rounded soma with three to five dendrites, ending in an enlargement called a dendritic claw. The dark thick traces are blood capillaries.
Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.
Background of mold in the wood of the house.
Microscopic image of Microscopic image of nymphaea of aqustio stem
plant stem (dahlia stem) cross section under the microscope showing epidermis, bascular bundles (phloem and xylem) cortex and pith - optical microscope x200 magnification
Cellular angiofibroma (CAF) is a rare, benign tumor of superficial soft tissues.
amazing inhabitants of the microworld under a microscope
Photomicrograph of stomata of leaf. Typical dicot distribution of stomata. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
High magnification light micrograph showing the outer layers of the retina of a bird. From top to bottom: pigment epithelium layer with processes full of melanin granules, rod and cones layer, external limiting membrane, outer nuclear layer.
background with hand written electrotechnics formulas with diagrams and plans of basic electrotechnics setups and sketches on white paper background,
Host cells with spores (mold) are inside wood under the microscope for education.
Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.
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