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    Sciatic nerve showing a bundle of nerve fibres — Stock Photo
    Sciatic nerve showing a bundle of nerve fibres
    Bone marrow cellular structure — Stock Photo
    Bone marrow cellular structure
    Secondary liver cancer — Stock Photo
    Secondary liver cancer
    Light micrograph of a colon biopsy from a colonoscopy. The pathology report describes normal colonic mucosa fragment with colic glands. Haematoxylin and eosin stain. — Stock Photo
    Light micrograph of a colon biopsy from a colonoscopy. The pathology report describes normal colonic mucosa fragment with colic glands. Haematoxylin and eosin stain.
    Dust mite, light micrograph — Stock Photo
    Dust mite, light micrograph
    Electron micrograph of dental plaque — Stock Photo
    Electron micrograph of dental plaque
    Light micrograph of a longitudinal section of plant vascular tissue. — Stock Photo
    Light micrograph of a longitudinal section of plant vascular tissue.
    Cerebellum tissue, light micrograph. Haematoxylin and eosin stain. — Stock Photo
    Cerebellum tissue, light micrograph. Haematoxylin and eosin stain.
    Human stomach adenocarcinoma, computer illustration and light micrograph. — Stock Photo
    Human stomach adenocarcinoma, computer illustration and light micrograph.
    Duct lined with pseudostratified epithelium — Stock Photo
    Duct lined with pseudostratified epithelium
    Lobar pneumonia in stage of red hepatisation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of red hepatisation, digital illustration and light micrograph.
    Light micrograph of a section through skin from the scalp. — Stock Photo
    Light micrograph of a section through skin from the scalp.
    Sciatic nerve showing a bundle of nerve fibres — Stock Photo
    Sciatic nerve showing a bundle of nerve fibres
    Light micrograph of red blood cells (erythrocytes, red) in a blood vessel. — Stock Photo
    Light micrograph of red blood cells (erythrocytes, red) in a blood vessel.
    Male mosquito head — Stock Photo
    Male mosquito head
    Colon cancer, digital illustration and light micrograph showing colon adenocarcinoma. — Stock Photo
    Colon cancer, digital illustration and light micrograph showing colon adenocarcinoma.
    Blood cells in a blood vessel — Stock Photo
    Blood cells in a blood vessel
    Lactating breast tissue — Stock Photo
    Lactating breast tissue
    Lobar pneumonia in stage of congestion and consolidation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of congestion and consolidation, digital illustration and light micrograph.
    Primary ovarian follicle — Stock Photo
    Primary ovarian follicle
    Gall bladder lining — Stock Photo
    Gall bladder lining
    Hepatic bile duct infected with cocidian protozoa — Stock Photo
    Hepatic bile duct infected with cocidian protozoa
    Human stomach adenocarcinoma, computer illustration and light micrograph. — Stock Photo
    Human stomach adenocarcinoma, computer illustration and light micrograph.
    Human stomach adenocarcinoma, computer illustration and light micrograph. — Stock Photo
    Human stomach adenocarcinoma, computer illustration and light micrograph.
    Liver fluke Clonorchis sinensis — Stock Photo
    Liver fluke Clonorchis sinensis
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Lactating breast tissue — Stock Photo
    Lactating breast tissue
    Digital illustration of nerve neurons cells. — Stock Photo
    Digital illustration of nerve neurons cells.
    Liver tissue, light micrograph. Animal tissue. — Stock Photo
    Liver tissue, light micrograph. Animal tissue.
    Digital illustration of nerve neurons cells. — Stock Photo
    Digital illustration of nerve neurons cells.
    Trachea lined with ciliated columnar epithelium — Stock Photo
    Trachea lined with ciliated columnar epithelium
    Plantar skin, light micrograph (LM) of sectioned foot sole skin. The skin on the soles of the feet is referred to as plantar skin as the outer layer of keratin (stratum corneum) (top) is much thicker here than in the rest of the body — Stock Photo
    Plantar skin, light micrograph (LM) of sectioned foot sole skin. The skin on the soles of the feet is referred to as plantar skin as the outer layer of keratin (stratum corneum) (top) is much thicker here than in the rest of the body
    Grey matter of the cerebellum — Stock Photo
    Grey matter of the cerebellum
    Crypts of Lieberkuhn. Light micrograph (LM). Crypts of Lieberkuhn of the colon shown in cross section. Crypts are long blind-ending tube-like extensions of the surface epithelial lining of the gut — Stock Photo
    Crypts of Lieberkuhn. Light micrograph (LM). Crypts of Lieberkuhn of the colon shown in cross section. Crypts are long blind-ending tube-like extensions of the surface epithelial lining of the gut
    Section of the small intestine — Stock Photo
    Section of the small intestine
    Parotid salivary gland — Stock Photo
    Parotid salivary gland
    Bald scalp cross-section, light micrograph. — Stock Photo
    Bald scalp cross-section, light micrograph.
    Light micrograph of a buccal mucosa cell. This cell lines the cheeks and the back of the lips. — Stock Photo
    Light micrograph of a buccal mucosa cell. This cell lines the cheeks and the back of the lips.
    Lungs cancer, digital illustration showing malignant tumour in lung. — Stock Photo
    Lungs cancer, digital illustration showing malignant tumour in lung.
    Light micrograph of a section through a nasal polyp, a benign growth that arises from a mucous membrane. — Stock Photo
    Light micrograph of a section through a nasal polyp, a benign growth that arises from a mucous membrane.
    Light micrograph of an artery vascular cross section. — Stock Photo
    Light micrograph of an artery vascular cross section.
    Hair follicles structure — Stock Photo
    Hair follicles structure
    Human bone marrow, light micrograph. Haematoxylin and eosin stain. — Stock Photo
    Human bone marrow, light micrograph. Haematoxylin and eosin stain.
    Light micrograph (bottom left) and computer illustration (top right) of the lining of the stomach, known as the mucosa. — Stock Photo
    Light micrograph (bottom left) and computer illustration (top right) of the lining of the stomach, known as the mucosa.
    Platelets in blood vessel — Stock Photo
    Platelets in blood vessel
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with from primary biliary cirrhosis. Cirrhosis is a disease in which bands of fibrosis (internal scarring) break up the internal structure of the liver — Stock Photo
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with from primary biliary cirrhosis. Cirrhosis is a disease in which bands of fibrosis (internal scarring) break up the internal structure of the liver
    Cells undergoing mitosis — Stock Photo
    Cells undergoing mitosis
    Section through a wart — Stock Photo
    Section through a wart
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Acute pyelonephritis, computer illustration and light micrograph — Stock Photo
    Acute pyelonephritis, computer illustration and light micrograph
    Light micrograph of human testis showing spermatogonia, spermatocytes in meiosis, spermatids, and spermatozoa. Haematoxylin and eosin stain. — Stock Photo
    Light micrograph of human testis showing spermatogonia, spermatocytes in meiosis, spermatids, and spermatozoa. Haematoxylin and eosin stain.
    Lily stem. Light micrograph(LM) of section through part of lily (Lilium) stem. Thin outer epidermis surrounds layer of cortex. At center is pith, which contains numerous vascular bundles (yellow) — Stock Photo
    Lily stem. Light micrograph(LM) of section through part of lily (Lilium) stem. Thin outer epidermis surrounds layer of cortex. At center is pith, which contains numerous vascular bundles (yellow)
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    PC12 neurone in culture — Stock Photo
    PC12 neurone in culture
    Ascaris Roundworm ovaries — Stock Photo
    Ascaris Roundworm ovaries
    Simple columnar epithelium, light micrograph — Stock Photo
    Simple columnar epithelium, light micrograph
    Immature parasitic trematode — Stock Photo
    Immature parasitic trematode
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph. — Stock Photo
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph.
    Maize root. Light micrograph (LM) of section through root of maize plant (Zea mays) showing typical monocot arrangement of vascular bundles. central vascular cylinder is comprised of central cluster of parenchyma cells — Stock Photo
    Maize root. Light micrograph (LM) of section through root of maize plant (Zea mays) showing typical monocot arrangement of vascular bundles. central vascular cylinder is comprised of central cluster of parenchyma cells