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    Fractured myelinated nerve fibres — Stock Photo
    Fractured myelinated nerve fibres
    Colored scanning electron micrograph of cancellous bone tissue from starling bird skull. — Stock Photo
    Colored scanning electron micrograph of cancellous bone tissue from starling bird skull.
    Bone marrow cellular structure — Stock Photo
    Bone marrow cellular structure
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Skeletal muscle fibres — Stock Photo
    Skeletal muscle fibres
    Human cardiac muscle, light micrograph. Haematoxylin and eosin stain. — Stock Photo
    Human cardiac muscle, light micrograph. Haematoxylin and eosin stain.
    Osteoporotic bone abnormality — Stock Photo
    Osteoporotic bone abnormality
    Digital illustration of diseased fatty human heart and cross-section close-up of atherosclerotic plaque histological structure, necrotic centre, foam cells and T-lymphocytes. — Stock Photo
    Digital illustration of diseased fatty human heart and cross-section close-up of atherosclerotic plaque histological structure, necrotic centre, foam cells and T-lymphocytes.
    Ovarian cancer cells, coloured scanning electron micrograph. — Stock Photo
    Ovarian cancer cells, coloured scanning electron micrograph.
    Acute pyelonephritis, computer illustration and light micrograph — Stock Photo
    Acute pyelonephritis, computer illustration and light micrograph
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons — Stock Photo
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons
    Human hair shafts, computer illustration — Stock Photo
    Human hair shafts, computer illustration
    Intestinal villi, computer illustration — Stock Photo
    Intestinal villi, computer illustration
    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
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Scanning electron micrograph (SEM) of sarcoma cells in culture. — Stock Photo
    Scanning electron micrograph (SEM) of sarcoma cells in culture.
    Ovary. Light micrograph (LM) of section through whole ovary. Cortex (outer region) contains numerous corpora lutea (pink) and follicles (purple) at various stages of development — Stock Photo
    Ovary. Light micrograph (LM) of section through whole ovary. Cortex (outer region) contains numerous corpora lutea (pink) and follicles (purple) at various stages of development
    Acute pyelonephritis, computer illustration and light micrograph — Stock Photo
    Acute pyelonephritis, computer illustration and light micrograph
    Taste buds. Coloured light micrograph of a section through the tongue, showing taste buds (round, purple). The taste buds are within papillae (projections) located on the surface of the tongue — Stock Photo
    Taste buds. Coloured light micrograph of a section through the tongue, showing taste buds (round, purple). The taste buds are within papillae (projections) located on the surface of the tongue
    Taste buds. Coloured light micrograph of a section through the tongue, showing taste buds (round, purple). The taste buds are within papillae (projections) located on the surface of the tongue — Stock Photo
    Taste buds. Coloured light micrograph of a section through the tongue, showing taste buds (round, purple). The taste buds are within papillae (projections) located on the surface of the tongue
    Digital illustration showing abundant lymphoblast cells in human blood in acute lymphoblastic leukaemia. — Stock Photo
    Digital illustration showing abundant lymphoblast cells in human blood in acute lymphoblastic leukaemia.
    Lungs cancer, digital illustration showing malignant tumour in lung. — Stock Photo
    Lungs cancer, digital illustration showing malignant tumour in lung.
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons — Stock Photo
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons
    Medical artwork of healthy intestinal villi in digestive system. — Stock Photo
    Medical artwork of healthy intestinal villi in digestive system.
    Medical illustration of inflamed intestinal villi. — Stock Photo
    Medical illustration of inflamed intestinal villi.
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia. — Stock Photo
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia.
    Medical artwork of healthy intestinal villi in digestive system. — Stock Photo
    Medical artwork of healthy intestinal villi in digestive system.
    Fat cell. Coloured scanning electron micrograph (SEM) of part of a fat-storing cell (adipocytes). Fat cells are one of the largest cell types in the human body, each cell being 100 to 120 microns in diameter — Stock Photo
    Fat cell. Coloured scanning electron micrograph (SEM) of part of a fat-storing cell (adipocytes). Fat cells are one of the largest cell types in the human body, each cell being 100 to 120 microns in diameter
    Human hair shafts, digital illustration. — Stock Photo
    Human hair shafts, digital illustration.
    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
    Crystalline lens of the eye — Stock Photo
    Crystalline lens of the eye
    Alzheimer's disease. Illustration of amyloid plaques amongst neurons and neurofibrillary tangles inside neurons. Amyloid plaques are characteristic features of Alzheimer's disease — Stock Photo
    Alzheimer's disease. Illustration of amyloid plaques amongst neurons and neurofibrillary tangles inside neurons. Amyloid plaques are characteristic features of Alzheimer's disease
    Hair follicles of human skin — Stock Photo
    Hair follicles of human skin
    Human brain with close-up view of neurons, computer illustration. — Stock Photo
    Human brain with close-up view of neurons, computer illustration.
    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
    Epithelium from a fallopian tube — Stock Photo
    Epithelium from a fallopian tube
    Ovary. Light micrograph (LM) of section through whole ovary. Cortex (outer region) contains numerous corpora lutea (pink) and follicles (purple) at various stages of development — Stock Photo
    Ovary. Light micrograph (LM) of section through whole ovary. Cortex (outer region) contains numerous corpora lutea (pink) and follicles (purple) at various stages of development
    Human hair shafts, computer illustration — Stock Photo
    Human hair shafts, computer illustration
    Light micrograph of a longitudinal section through filiform papillae on the tongue surface. — Stock Photo
    Light micrograph of a longitudinal section through filiform papillae on the tongue surface.
    Human intestinal villi, computer illustration. — Stock Photo
    Human intestinal villi, computer illustration.
    Human smooth muscle, light micrograph. — Stock Photo
    Human smooth muscle, light micrograph.
    Human cardiac muscle, light micrograph. — Stock Photo
    Human cardiac muscle, light micrograph.
    Hair shafts growing from human skin — Stock Photo
    Hair shafts growing from human skin
    Human intestinal villi, computer illustration. — Stock Photo
    Human intestinal villi, computer illustration.
    Pseudostratified epithelium, light micrograph. Pseudostratified epithelium is a type of epithelium that comprises only a single layer of cells. — Stock Photo
    Pseudostratified epithelium, light micrograph. Pseudostratified epithelium is a type of epithelium that comprises only a single layer of cells.
    Ovarian cancer cells, coloured scanning electron micrograph. — Stock Photo
    Ovarian cancer cells, coloured scanning electron micrograph.
    Mixed oral bacteria — Stock Photo
    Mixed oral bacteria
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with cirrhosis-associated hepatocellular nodules. — Stock Photo
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with cirrhosis-associated hepatocellular nodules.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Hyaline cartilage, a semi-rigid connective tissue — Stock Photo
    Hyaline cartilage, a semi-rigid connective tissue
    Lung bronchiole. Light micrograph of a section through lung tissue and a bronchiole. Bronchi form branches from the trachea and gradually diminish in diameter with increasing branching into bronchioles within the lung — Stock Photo
    Lung bronchiole. Light micrograph of a section through lung tissue and a bronchiole. Bronchi form branches from the trachea and gradually diminish in diameter with increasing branching into bronchioles within the lung
    Freeze-fractured lens of an eye — Stock Photo
    Freeze-fractured lens of an eye
    Purkinje cell of brain cerebellum, digital illustration. — Stock Photo
    Purkinje cell of brain cerebellum, digital illustration.
    Human brain with close-up view of neurons, computer illustration. — Stock Photo
    Human brain with close-up view of neurons, computer illustration.
    Intestinal villi, computer illustration — Stock Photo
    Intestinal villi, computer illustration
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons — Stock Photo
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons
    Developing pig eye — Stock Photo
    Developing pig eye
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia. — Stock Photo
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia.