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Egg of parasitic roundworm Trichuris trichiura, or whipworm, the causative agent of trichuriasis, disease of a human large intestine, 3D illustration

plant Zea Stem C.S. under light mircoscope with white background

centropyxis aculeata (amoeboid organism) under the microscope - optical microscope x400 magnification

Blastomycosis is a fungal infection caused by inhaling Blastomyces dermatitidis spores. If it involves only the lungs, it is called pulmonary blastomycosis. Only about half of people with the disease have symptoms, which can include fever, cough, night sweats, muscle pains, weight loss, chest pain, and feeling tired.

Microscopic close view of high vaginal swab Gram stain smear, 100x. diagnosis of Bacterial vaginosis (BV).

Photomicrograph of filamentous blue-green algae, Oscillatoria species. Each band along the stand is one cell. This filament is very short probably having recently parted from a longer one. Filaments are typically many times longer. This algae is mobile, it moves and twists through the water. San Francisco Bay, California, USA. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live specimen, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.

Gastric mucosa stained with the Masson trichrome stain showing: surface epithelium, gastric pits with foveolar cells, fundic glands and muscularis mucosae.

Liver Fluke Section under light microscope with white background

Micrograph of rat brain. Science cross section.

Plasmacytoid urothelial carcinoma (PUC) is a unique variant of invasive urothelial carcinoma characterized by tumor cells that exhibit a striking resemblance to plasma cells, and it is known to have an aggressive behavior.

Christmas Orchid (Calanthe Hybrid) in London, England

Tracheal mucosa lined by ciliated pseudostratified prismatic epithelium with goblet cells stained in purple as well as the elastic fibers located under the epithelium. Light microscope picture. Gabe’s technique.

PAPS Smear study of a young women under microscopy showing Atrophic changes in uterus which is unusual at young age.

Toothwort, a wildflower, in a swamp in Connecticut. Also known as crinkleroot.

amazing inhabitants of the microworld under a microscope

Photomicrograph of two rotifers. Rapidly rotating cilia at top of heads, internal organs visible. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.

Tapeworms (Cestoda: Caryophyllidea), Parasites of Fish in Thailand.

Metastatic leydig cell tumor in the lymph node

Close-up of white crown flower or giant Indian milkweed

Calanthe Discolor Hybrid in London, England

Microtubule, 3D illustration. A polymer composed of a protein tubulin, it is a component of cytoskeleton involved in intracellular transport, cellular mobility and nuclear division

$Short, almost hairless aquatic or semi-aquatic perennial with stout creeping runners. Leaves trifoliate, with oval or diamond-shaped, untoothed leaflets, held above the water surface on long stalks. Flowers pink outside, whitish inside, 14-16mm, starry, the petals fringed with long whitish hairs, borne in lax erect racemes.\nHabitat: Shallow water, or semi-aquatic in fens and bogs.\nFlowering Season: April-June.\nDistribution: Throughout Europe, except parts of the far north.\n\nThe Plant is known as Herbal Medicine.\n\nThis Picture is made in a Pond of an Ornamental Garden in the Netherlands.$

Transmission electron micrograph (TEM) showing a striated skeletal muscle cell in cross section. Among myofibrils (sectioned at the band A level), mitochondria and sarcoplasmic reticulum can be seen.

Close-up of Chinese fringetree in full bloom.

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