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    Electron micrograph of dental plaque — Stock Photo
    Electron micrograph of dental plaque
    Villi of the intestine — Stock Photo
    Villi of the intestine
    Lung aneurysm, light micrograph. — Stock Photo
    Lung aneurysm, light micrograph.
    Structure of trachea, light micrograph. — Stock Photo
    Structure of trachea, light micrograph.
    Colon lining and mucous producing cells — Stock Photo
    Colon lining and mucous producing cells
    Areolar connective tissue, light micrograph. — Stock Photo
    Areolar connective tissue, light micrograph.
    Transverse section through a leaf showing foveate stomata (light areas on underside of leaf. — Stock Photo
    Transverse section through a leaf showing foveate stomata (light areas on underside of leaf.
    Unilocular adipose tissue — Stock Photo
    Unilocular adipose tissue
    Upper lip skin with hair follicles — Stock Photo
    Upper lip skin with hair follicles
    Digital illustration and light micrograph of squamous cell carcinoma of lung. — Stock Photo
    Digital illustration and light micrograph of squamous cell carcinoma of lung.
    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.
    Hair follicles structure — Stock Photo
    Hair follicles structure
    Wilms tumour of the kidney — Stock Photo
    Wilms tumour of the kidney
    Bile duct cellular sctructure — Stock Photo
    Bile duct cellular sctructure
    Human stomach adenocarcinoma, computer illustration and light micrograph. — Stock Photo
    Human stomach adenocarcinoma, computer illustration and light micrograph.
    Section through a lily stem — Stock Photo
    Section through a lily stem
    Lung cancer, digital illustration and light micrograph of cancerous tissue. — Stock Photo
    Lung cancer, digital illustration and light micrograph of cancerous tissue.
    Longitudinal section through smooth muscle — Stock Photo
    Longitudinal section through smooth muscle
    Hepatic bile duct infected with cocidian protozoa — Stock Photo
    Hepatic bile duct infected with cocidian protozoa
    Paramecium sp. ciliate protozoa — Stock Photo
    Paramecium sp. ciliate protozoa
    Secondary carcinoma of the lung — Stock Photo
    Secondary carcinoma of the lung
    Lime tree stem — Stock Photo
    Lime tree stem
    Longitudinal section through smooth muscle — Stock Photo
    Longitudinal section through smooth muscle
    Undifferentiated pleomorphic sarcoma of bone — Stock Photo
    Undifferentiated pleomorphic sarcoma of bone
    Purkinje neurons in the cerebellum — Stock Photo
    Purkinje neurons in the cerebellum
    Omentum fold of peritoneal membrane — Stock Photo
    Omentum fold of peritoneal membrane
    Mucosa of the trachea — Stock Photo
    Mucosa of the trachea
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink). — Stock Photo
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink).
    Section of a flower bud — Stock Photo
    Section of a flower bud
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Blood cells, light micrograph. — Stock Photo
    Blood cells, light micrograph.
    Light micrograph (LM) of a vertical section through the pseudostratified columnar epithelium from the trachea, the tube in the throat leading from the mouth to the bronchus and the lungs. — Stock Photo
    Light micrograph (LM) of a vertical section through the pseudostratified columnar epithelium from the trachea, the tube in the throat leading from the mouth to the bronchus and the lungs.
    Layer of cells, light micrograph and computer illustration. — Stock Photo
    Layer of cells, light micrograph and computer illustration.
    Platelets in blood vessel — Stock Photo
    Platelets in blood vessel
    Electron micrograph of dental plaque — Stock Photo
    Electron micrograph of dental plaque
    Elm stem. Light micrograph (LM) of cross-section through woody stem of elm (Ulmus procera) tree. — Stock Photo
    Elm stem. Light micrograph (LM) of cross-section through woody stem of elm (Ulmus procera) tree.
    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.
    Sciatic nerve showing a bundle of nerve fibres — Stock Photo
    Sciatic nerve showing a bundle of nerve fibres
    Hepatocyte cells, light micrograph. Hepatocyte cells are the main parenchymal tissue cells of the liver. Haematoxylin and eosin stain. — Stock Photo
    Hepatocyte cells, light micrograph. Hepatocyte cells are the main parenchymal tissue cells of the liver. Haematoxylin and eosin stain.
    Lactating breast tissue — Stock Photo
    Lactating breast tissue
    Light micrograph of a section through the surface of a tongue showing a circumvallate papilla (round, upper left), one of the structures that controls the sense of taste. — Stock Photo
    Light micrograph of a section through the surface of a tongue showing a circumvallate papilla (round, upper left), one of the structures that controls the sense of taste.
    Kidney with acute nephritis — Stock Photo
    Kidney with acute nephritis
    Section of a flower bud — Stock Photo
    Section of a flower bud
    Bone marrow cellular structure — Stock Photo
    Bone marrow cellular structure
    Structure of compact bone, light micrograph. — Stock Photo
    Structure of compact bone, light micrograph.
    Areolar connective tissue, light micrograph. — Stock Photo
    Areolar connective tissue, light micrograph.
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph. — Stock Photo
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph.
    Light micrograph of liver fluke eggs in a fish scale. — Stock Photo
    Light micrograph of liver fluke eggs in a fish scale.
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla). — Stock Photo
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla).
    Parotid salivary gland — Stock Photo
    Parotid salivary gland
    Fertilization of human egg — Stock Photo
    Fertilization of human egg
    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.
    Transverse section through the midrib of a fern leaf — Stock Photo
    Transverse section through the midrib of a fern leaf
    Sciatic nerve showing a bundle of nerve fibres — Stock Photo
    Sciatic nerve showing a bundle of nerve fibres
    Dog roundworm eggs (Toxocara canis), light micrograph. — Stock Photo
    Dog roundworm eggs (Toxocara canis), light micrograph.
    Human hair with dandruff and close-up of light micrograph, digital artwork. — Stock Photo
    Human hair with dandruff and close-up of light micrograph, digital artwork.
    Gum tissue with gingivitis — Stock Photo
    Gum tissue with gingivitis
    Cross-section of human cartilage and bone, light micrograph. — Stock Photo
    Cross-section of human cartilage and bone, light micrograph.
    Breast with lobular carcinoma — Stock Photo
    Breast with lobular carcinoma
    Aphid, light micrograph — Stock Photo
    Aphid, light micrograph