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    Normal elbow joint anatomy — Stock Photo
    Normal elbow joint anatomy
    Coloured X-ray of arthritic knees — Stock Photo
    Coloured X-ray of arthritic knees
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Nerve. Coloured scanning electron micrograph (SEM) of a freeze-fracture through a peripheral nerve. Schwann cells wraps their cell membrane around the nerve a number of times. — Stock Photo
    Nerve. Coloured scanning electron micrograph (SEM) of a freeze-fracture through a peripheral nerve. Schwann cells wraps their cell membrane around the nerve a number of times.
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Gall bladder. Coloured scanning electron micrograph (SEM) of the surface of a gall bladder. This mucosa lining is made up of cuboidal epithelial cells (pink) — Stock Photo
    Gall bladder. Coloured scanning electron micrograph (SEM) of the surface of a gall bladder. This mucosa lining is made up of cuboidal epithelial cells (pink)
    Normal skull structure of young adult — Stock Photo
    Normal skull structure of young adult
    MRI scan of normal brain — Stock Photo
    MRI scan of normal brain
    Colored scanning electron micrograph of scales from silverfish insect living fossil. — Stock Photo
    Colored scanning electron micrograph of scales from silverfish insect living fossil.
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Colored scanning electron micrograph of osteosarcoma bone cancer cell. — Stock Photo
    Colored scanning electron micrograph of osteosarcoma bone cancer cell.
    Human lip. Coloured scanning electron micrograph (SEM) of a human lip, showing sweat gland openings on the drier external lip surface. These openings (pores) release sweat onto the surface of the skin — Stock Photo
    Human lip. Coloured scanning electron micrograph (SEM) of a human lip, showing sweat gland openings on the drier external lip surface. These openings (pores) release sweat onto the surface of the skin
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Tendon, coloured scanning electron micrograph (SEM), showing bundles of collagen fibres. The parallel alignment of the fibres make tendons inelastic but flexible. Tendons attach muscle to bone — Stock Photo
    Tendon, coloured scanning electron micrograph (SEM), showing bundles of collagen fibres. The parallel alignment of the fibres make tendons inelastic but flexible. Tendons attach muscle to bone
    Candida albicans infected medical catheter — Stock Photo
    Candida albicans infected medical catheter
    Coloured scanning electron micrograph of bacteria cultured from used dishcloth. — Stock Photo
    Coloured scanning electron micrograph of bacteria cultured from used dishcloth.
    Sperm cells in seminiferous tubule — Stock Photo
    Sperm cells in seminiferous tubule
    Activated T lymphocytes and red blood cells on scanning electron micrograph. — Stock Photo
    Activated T lymphocytes and red blood cells on scanning electron micrograph.
    3D rendering of human skeletal system on black background — Stock Photo
    3D rendering of human skeletal system on black background
    Coloured scanning electron micrograph of dividing Schizosaccharomyces pombe yeast cells. — Stock Photo
    Coloured scanning electron micrograph of dividing Schizosaccharomyces pombe yeast cells.
    Cancellous Bone tissue — Stock Photo
    Cancellous Bone tissue
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Coloured scanning electron micrograph (SEM) of a section through fractured skeletal muscle to show large muscle bundles, or fascicles (green), surrounded by perimysium connective tissue (pink). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through fractured skeletal muscle to show large muscle bundles, or fascicles (green), surrounded by perimysium connective tissue (pink).
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is brown. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (blue) contain enzymes for digesting foreign particles — Stock Photo
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is brown. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (blue) contain enzymes for digesting foreign particles
    Female dentist cleaning dental jaw model with toothbrush in clinic — Stock Photo
    Female dentist cleaning dental jaw model with toothbrush in clinic
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Geranium sp. pollen grain — Stock Photo
    Geranium sp. pollen grain
    Crop unrecognizable trendy homosexual man with tattoo in form of snake and manicure on brown background — Stock Photo
    Crop unrecognizable trendy homosexual man with tattoo in form of snake and manicure on brown background
    Roquefort cheese and digital illustration of fungus Penicillium roqueforti. — Stock Photo
    Roquefort cheese and digital illustration of fungus Penicillium roqueforti.
    Centric fossil diatom frustule — Stock Photo
    Centric fossil diatom frustule
    Blue brain tumour on magnetic resonance imaging scan, illustration. — Stock Photo
    Blue brain tumour on magnetic resonance imaging scan, illustration.
    Coloured scanning electron micrograph of Phasmarhabditis hermaphrodita microscopic nematode parasite of Rhabditidae. — Stock Photo
    Coloured scanning electron micrograph of Phasmarhabditis hermaphrodita microscopic nematode parasite of Rhabditidae.
    Young vain man in stylish wear with lady's purse standing on tiled wall while looking at camera — Stock Photo
    Young vain man in stylish wear with lady's purse standing on tiled wall while looking at camera
    Canada, British Columbia, Vancouver, False Creek, Illuminated skyscrapers reflecting in river — Stock Photo
    Canada, British Columbia, Vancouver, False Creek, Illuminated skyscrapers reflecting in river
    Scanning electron micrograph of Brevibacteria on human feet causing odour. — Stock Photo
    Scanning electron micrograph of Brevibacteria on human feet causing odour.
    Gall bladder. Coloured scanning electron micrograph (SEM) of the surface of a gall bladder. This mucosa lining is made up of cuboidal epithelial cells (yellow) — Stock Photo
    Gall bladder. Coloured scanning electron micrograph (SEM) of the surface of a gall bladder. This mucosa lining is made up of cuboidal epithelial cells (yellow)
    Colored scanning electron micrograph of bundles of sensory cilia cells in macula utriculi within labyrinth of human inner ear. — Stock Photo
    Colored scanning electron micrograph of bundles of sensory cilia cells in macula utriculi within labyrinth of human inner ear.
    Alarm clock, coloured X-ray. — Stock Photo
    Alarm clock, coloured X-ray.
    Hair shafts growing from human skin — Stock Photo
    Hair shafts growing from human skin
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Colored scanning electron micrograph of immature pig sperm from epididymis. — Stock Photo
    Colored scanning electron micrograph of immature pig sperm from epididymis.
    Hand of dentist holding set of dentures in dental clinic — Stock Photo
    Hand of dentist holding set of dentures in dental clinic
    Digital illustration of multiple threadworms in human intestine. — Stock Photo
    Digital illustration of multiple threadworms in human intestine.
    Colored scanning electron micrograph of Liposcelis divinatorius booklouse. — Stock Photo
    Colored scanning electron micrograph of Liposcelis divinatorius booklouse.
    Streptococcus thermophilus bacteria — Stock Photo
    Streptococcus thermophilus bacteria
    Clownfish swimming among tentacles of anemone — Stock Photo
    Clownfish swimming among tentacles of anemone
    Ovarian cancer cells, coloured scanning electron micrograph. — Stock Photo
    Ovarian cancer cells, coloured scanning electron micrograph.
    Bacteria found in a sample of human faeces — Stock Photo
    Bacteria found in a sample of human faeces
    Shoulder and elbow joints anatomy — Stock Photo
    Shoulder and elbow joints anatomy
    Digital illustration of Lyme disease tick parasite. — Stock Photo
    Digital illustration of Lyme disease tick parasite.
    Colored scanning electron micrograph of pollen grain cell from hollyhock hibiscus flower. — Stock Photo
    Colored scanning electron micrograph of pollen grain cell from hollyhock hibiscus flower.
    Human red blood cells — Stock Photo
    Human red blood cells
    Normal elbow and wrist joints, X-ray — Stock Photo
    Normal elbow and wrist joints, X-ray
    Stick insect foot — Stock Photo
    Stick insect foot
    Blastocyst hollow ball of cells with fluid, digital illustration. — Stock Photo
    Blastocyst hollow ball of cells with fluid, digital illustration.
    Colored scanning electron micrograph of osteoblast osteocyte bone cell. — Stock Photo
    Colored scanning electron micrograph of osteoblast osteocyte bone cell.
    Coloured X-ray of the foot of a 22-year-old male patient with a spur (osteophyte, highlighted) affecting the tibia (shin bone). — Stock Photo
    Coloured X-ray of the foot of a 22-year-old male patient with a spur (osteophyte, highlighted) affecting the tibia (shin bone).
    Intestinal microvilli. Coloured transmission electron micrograph (TEM) of a section through microvilli from the small intestine. These tiny structures (cyan) form a dense brush-like covering on the absorptive surfaces of the cells — Stock Photo
    Intestinal microvilli. Coloured transmission electron micrograph (TEM) of a section through microvilli from the small intestine. These tiny structures (cyan) form a dense brush-like covering on the absorptive surfaces of the cells
    Elevated view of false capers made of nasturtium seeds — Stock Photo
    Elevated view of false capers made of nasturtium seeds
    Human hair, coloured scanning electron micrograph (SEM). — Stock Photo
    Human hair, coloured scanning electron micrograph (SEM).