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1319 results

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    Blood stream and artery walls — Stock Photo
    Blood stream and artery walls
    Red blood cells — Stock Photo
    Red blood cells
    Mans hand holding a phone in the kitchen at home — Stock Photo
    Mans hand holding a phone in the kitchen at home
    Crenated red blood cells — Stock Photo
    Crenated red blood cells
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    HIV human immunodeficiency virus in bloodstream, digital illustration — Stock Photo
    HIV human immunodeficiency virus in bloodstream, digital illustration
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Digital illustration of cutaway view of human cell membrane. — Stock Photo
    Digital illustration of cutaway view of human cell membrane.
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Parasitic amoeba engulfing red blood cells, illustration in imaging flow cytometry. — Stock Photo
    Parasitic amoeba engulfing red blood cells, illustration in imaging flow cytometry.
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Red blood cells in blood stream — Stock Photo
    Red blood cells in blood stream
    Fat in blood cells blocking blood vessel, digital illustration. — Stock Photo
    Fat in blood cells blocking blood vessel, digital illustration.
    HIV human immunodeficiency virus in bloodstream, digital illustration — Stock Photo
    HIV human immunodeficiency virus in bloodstream, digital illustration
    Fractured pancreas tissue — Stock Photo
    Fractured pancreas tissue
    Dividing prostate cancer cells, coloured scanning electron micrograph. — Stock Photo
    Dividing prostate cancer cells, coloured scanning electron micrograph.
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Red and white blood cells — Stock Photo
    Red and white blood cells
    Realistic illustration of human nerve cell on white background. — Stock Photo
    Realistic illustration of human nerve cell on white background.
    Human sperm approaching egg cell — Stock Photo
    Human sperm approaching egg cell
    Pregnant woman using mobile phone at home — Stock Photo
    Pregnant woman using mobile phone at home
    Giant cell tumour of the bone — Stock Photo
    Giant cell tumour of the bone
    Cancer cells in human brain, digital illustration. — Stock Photo
    Cancer cells in human brain, digital illustration.
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Coloured scanning electron micrograph of 293T cell infected with human immunodeficiency virus. — Stock Photo
    Coloured scanning electron micrograph of 293T cell infected with human immunodeficiency virus.
    Illustration of illuminated cancer cells on black background. — Stock Photo
    Illustration of illuminated cancer cells on black background.
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Red blood cells in bloodstream — Stock Photo
    Red blood cells in bloodstream
    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.
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Coloured scanning electron micrograph of cancer cells migrating down pores. — Stock Photo
    Coloured scanning electron micrograph of cancer cells migrating down pores.
    3d illustration of blue cells pattern with red nuclei. — Stock Photo
    3d illustration of blue cells pattern with red nuclei.
    Close up woman using digital shopping list on smart phone in supermarket — Stock Photo
    Close up woman using digital shopping list on smart phone in supermarket
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization. — Stock Photo
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization.
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Female dentist talking on the phone — Stock Photo
    Female dentist talking on the phone
    Dividing prostate cancer cells, coloured scanning electron micrograph. — Stock Photo
    Dividing prostate cancer cells, coloured scanning electron micrograph.
    3d illustration showing increase of non-functional white blood cells in leukaemia. — Stock Photo
    3d illustration showing increase of non-functional white blood cells in leukaemia.
    Platelets in human blood, computer illustration. — Stock Photo
    Platelets in human blood, computer illustration.
    Daisy pollen grain — Stock Photo
    Daisy pollen grain
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Magnified digital illustration of human cell cross-section. — Stock Photo
    Magnified digital illustration of human cell cross-section.
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Illustration of illuminated red human cancer cell. — Stock Photo
    Illustration of illuminated red human cancer cell.
    Activated blood cell fragments platelets, coloured scanning electron micrograph. — Stock Photo
    Activated blood cell fragments platelets, coloured scanning electron micrograph.
    Human cardiac muscle, light micrograph. Haematoxylin and eosin stain. — Stock Photo
    Human cardiac muscle, light micrograph. Haematoxylin and eosin stain.
    Illustration of silhouette of pregnant woman with visible uterus and implanted blastocyst. — Stock Photo
    Illustration of silhouette of pregnant woman with visible uterus and implanted blastocyst.
    Illustration of abstract conceptual cancer monster. — Stock Photo
    Illustration of abstract conceptual cancer monster.
    Human sperm cells — Stock Photo
    Human sperm cells
    Human red blood cells — Stock Photo
    Human red blood cells
    Human sperm cells — Stock Photo
    Human sperm cells
    Digital illustration of human cells on blue background. — Stock Photo
    Digital illustration of human cells on blue background.
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Tumour filling an alveolus of the human lung — Stock Photo
    Tumour filling an alveolus of the human lung
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration.
    Influenza virus particles in blood stream — Stock Photo
    Influenza virus particles in blood stream
    HIV particles in the bloodstream — Stock Photo
    HIV particles in the bloodstream
    Hypodermic needle (26 gauge) and human blood, coloured scanning electron micrograph (SEM). — Stock Photo
    Hypodermic needle (26 gauge) and human blood, coloured scanning electron micrograph (SEM).