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    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    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.
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph. — Stock Photo
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph.
    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.
    Human lung tissue, light micrograph. Lungs are the primary organs of the respiratory system in humans and many other animals. — Stock Photo
    Human lung tissue, light micrograph. Lungs are the primary organs of the respiratory system in humans and many other animals.
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Appendix showing appendicitis — Stock Photo
    Appendix showing appendicitis
    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).
    Microsporum gypseum fungus — Stock Photo
    Microsporum gypseum fungus
    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.
    Cross-section through a fallopian tube — Stock Photo
    Cross-section through a fallopian tube
    Colon lining and mucous producing cells — Stock Photo
    Colon lining and mucous producing cells
    Immature parasitic trematode — Stock Photo
    Immature parasitic trematode
    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)
    Hair follicles of human skin — Stock Photo
    Hair follicles of human skin
    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.
    Dust mite, light micrograph — Stock Photo
    Dust mite, light micrograph
    Light micrograph of a section through skin with a neurofibroma tumour (pink, across bottom). — Stock Photo
    Light micrograph of a section through skin with a neurofibroma tumour (pink, across bottom).
    Light micrograph (LM) of longitudinal section through a fetal finger tip to show the developing nail. — Stock Photo
    Light micrograph (LM) of longitudinal section through a fetal finger tip to show the developing nail.
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph. — Stock Photo
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph.
    Human cardiac muscle, light micrograph. — Stock Photo
    Human cardiac muscle, light micrograph.
    Section through the olfactory epithelium — Stock Photo
    Section through the olfactory epithelium
    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.
    Colon lining and mucous producing cells — Stock Photo
    Colon lining and mucous producing cells
    Breast with lobular carcinoma — Stock Photo
    Breast with lobular carcinoma
    Human blood cells, light micrograph. — Stock Photo
    Human blood cells, light micrograph.
    Section of the small intestine — Stock Photo
    Section of the small intestine
    Complex mucosal folding of seminal vesicle — Stock Photo
    Complex mucosal folding of seminal vesicle
    Grey matter of the cerebellum — Stock Photo
    Grey matter of the cerebellum
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue. — Stock Photo
    Oesophageal cancer, computer illustration and light micrograph of cancer 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.
    Villi of the intestine — Stock Photo
    Villi of the intestine
    Ovarian cells section — Stock Photo
    Ovarian cells section
    Light micrograph of an artery vascular cross section. — Stock Photo
    Light micrograph of an artery vascular cross section.
    Platelets in blood vessel — Stock Photo
    Platelets in blood vessel
    Rod-shaped Anthrax bacteria — Stock Photo
    Rod-shaped Anthrax bacteria
    Section through an osteoid osteoma — Stock Photo
    Section through an osteoid osteoma
    Breast tissue showing adenocarcinoma — Stock Photo
    Breast tissue showing adenocarcinoma
    Electron micrograph of dental plaque — Stock Photo
    Electron micrograph of dental plaque
    Section through a full term placenta — Stock Photo
    Section through a full term placenta
    Female of the human body louse — Stock Photo
    Female of the human body louse
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Human smooth muscle, light micrograph. — Stock Photo
    Human smooth muscle, light micrograph.
    Tendon fibroblast, light micrograph. Haematoxylin and eosin stain. — Stock Photo
    Tendon fibroblast, light micrograph. Haematoxylin and eosin stain.
    Lactating breast tissue — Stock Photo
    Lactating breast tissue
    Adenocarcinoma of the endometrium — Stock Photo
    Adenocarcinoma of the endometrium
    Marsh marigold carpel — Stock Photo
    Marsh marigold carpel
    Section through the olfactory epithelium — Stock Photo
    Section through the olfactory epithelium
    Lobar pneumonia in stage of grey hepatisation, conceptual digital illustration. — Stock Photo
    Lobar pneumonia in stage of grey hepatisation, conceptual digital illustration.
    Undifferentiated pleomorphic sarcoma of bone — Stock Photo
    Undifferentiated pleomorphic sarcoma of bone
    Light micrograph of a cross section of human cartilage and bone. Haematoxylin and eosin stain. — Stock Photo
    Light micrograph of a cross section of human cartilage and bone. Haematoxylin and eosin stain.
    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.
    Plant vascular tissue, light micrograph. Haematoxylin and eosin stain. — Stock Photo
    Plant vascular tissue, light micrograph. Haematoxylin and eosin stain.
    Human large intestine tissue, light micrograph. — Stock Photo
    Human large intestine tissue, light micrograph.
    Light micrograph of a section through a lymph node affected by Hodgkin's lymphoma. — Stock Photo
    Light micrograph of a section through a lymph node affected by Hodgkin's lymphoma.
    Blood cells in a blood vessel — Stock Photo
    Blood cells in a blood vessel
    Section through a lily stem — Stock Photo
    Section through a lily stem
    Human cardiac muscle, light micrograph. — Stock Photo
    Human cardiac muscle, light micrograph.
    Human stomach adenocarcinoma, computer illustration and light micrograph. — Stock Photo
    Human stomach adenocarcinoma, computer illustration and light micrograph.
    Human kidney tissue, light micrograph. Haematoxylin and eosin stain. — Stock Photo
    Human kidney tissue, light micrograph. Haematoxylin and eosin stain.