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1815 results

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    Daisy pollen grain — Stock Photo
    Daisy pollen grain
    Thoracic region of spine — Stock Photo
    Thoracic region of spine
    Brain infections. Computer illustration of microorganisms that cause encephalitis and meningitis — Stock Photo
    Brain infections. Computer illustration of microorganisms that cause encephalitis and meningitis
    Human hip joint pain — Stock Photo
    Human hip joint pain
    3d illustrations of the human heart with lines demonstrating blood flow. — Stock Photo
    3d illustrations of the human heart with lines demonstrating blood flow.
    Computer generated image of capsules modeled on sample of fluoxetine — Stock Photo
    Computer generated image of capsules modeled on sample of fluoxetine
    Human hair shafts, computer illustration — Stock Photo
    Human hair shafts, computer illustration
    Internal organs and digestive system — Stock Photo
    Internal organs and digestive system
    Cancer invasion into surrounding tissues, conceptual computer illustration. — Stock Photo
    Cancer invasion into surrounding tissues, conceptual computer illustration.
    Human facial muscles — Stock Photo
    Human facial muscles
    Herpes simplex virus, computer illustration — Stock Photo
    Herpes simplex virus, computer illustration
    Human brain anatomy — Stock Photo
    Human brain anatomy
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Normal X and y chromosomes — Stock Photo
    Normal X and y chromosomes
    Conceptual illustration of viral encephalitis is an inflammation of the brain caused by a virus. — Stock Photo
    Conceptual illustration of viral encephalitis is an inflammation of the brain caused by a virus.
    Brucella bacteria, illustration. Brucella is a Gram negative, non-sporing, aerobic bacillus (rod- shaped bacteria) — Stock Photo
    Brucella bacteria, illustration. Brucella is a Gram negative, non-sporing, aerobic bacillus (rod- shaped bacteria)
    Dental mirror and human teeth — Stock Photo
    Dental mirror and human teeth
    Abstract surface of circuit board, illustration. — Stock Photo
    Abstract surface of circuit board, illustration.
    Pox virus, computer illustration — Stock Photo
    Pox virus, computer illustration
    Acute pyelonephritis. Illustration of small abscesses (yellow) on surface of kidney in case of acute pyelonephritis — Stock Photo
    Acute pyelonephritis. Illustration of small abscesses (yellow) on surface of kidney in case of acute pyelonephritis
    Tuberculosis bacteria. Computer illustration of Mycobacterium tuberculosis bacteria, the Gram-positive rod-shaped bacteria which cause the disease tuberculosis. — Stock Photo
    Tuberculosis bacteria. Computer illustration of Mycobacterium tuberculosis bacteria, the Gram-positive rod-shaped bacteria which cause the disease tuberculosis.
    Anatomy of a human heart, front and side view, 3d illustration. — Stock Photo
    Anatomy of a human heart, front and side view, 3d illustration.
    Human shoulder joint anatomy — Stock Photo
    Human shoulder joint anatomy
    Cancer cell morphology — Stock Photo
    Cancer cell morphology
    Visual rendering of Human cells — Stock Photo
    Visual rendering of Human cells
    Human rib cage anatomy — Stock Photo
    Human rib cage anatomy
    Cancer cell with filaments — Stock Photo
    Cancer cell with filaments
    Human fetus developing at week 27, computer illustration. — Stock Photo
    Human fetus developing at week 27, computer illustration.
    Mature intestinal tapeworm — Stock Photo
    Mature intestinal tapeworm
    Tetanus bacteria, illustration. Clostridium tetani is a gram-positive, spore-forming, anaerobic bacillus (rod-shaped bacterium) that causes tetanus. Members of the Clostridium genus exist as soil saprophytes and as intestinal parasites of animals — Stock Photo
    Tetanus bacteria, illustration. Clostridium tetani is a gram-positive, spore-forming, anaerobic bacillus (rod-shaped bacterium) that causes tetanus. Members of the Clostridium genus exist as soil saprophytes and as intestinal parasites of animals
    West Nile virus particles, computer illustration. West Nile virus (WNV) is known to cause encephalitis in humans. — Stock Photo
    West Nile virus particles, computer illustration. West Nile virus (WNV) is known to cause encephalitis in humans.
    Trypanosoma brucei protozoan — Stock Photo
    Trypanosoma brucei protozoan
    Protein molecules, 3d illustration — Stock Photo
    Protein molecules, 3d illustration
    Lower arm bone structure and functional anatomy — Stock Photo
    Lower arm bone structure and functional anatomy
    Human lymph node — Stock Photo
    Human lymph node
    Penicillium fungus, Computer illustration — Stock Photo
    Penicillium fungus, Computer illustration
    Cross section of normal large intestine — Stock Photo
    Cross section of normal large intestine
    Red blood cells in blood stream — Stock Photo
    Red blood cells in blood stream
    Causes of bacterial meningitis, computer illustration. Neisseria meningitidis, Streptococcus pneumoniae, Haemophilus influenzae and Listeria monocytogenes bacteria, the main causative agents of bacterial meningitis. Labelled image. — Stock Photo
    Causes of bacterial meningitis, computer illustration. Neisseria meningitidis, Streptococcus pneumoniae, Haemophilus influenzae and Listeria monocytogenes bacteria, the main causative agents of bacterial meningitis. Labelled image.
    Artwork of human fertilization — Stock Photo
    Artwork of human fertilization
    Syphilis ulcer on vulva — Stock Photo
    Syphilis ulcer on vulva
    Measles virus particles, digital illustration. — Stock Photo
    Measles virus particles, digital illustration.
    Cancer cells and blood vessels — Stock Photo
    Cancer cells and blood vessels
    Circuit board connections, digital illustration. — Stock Photo
    Circuit board connections, digital illustration.
    Acute pyelonephritis, computer illustration and light micrograph — Stock Photo
    Acute pyelonephritis, computer illustration and light micrograph
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells
    Human jaw bone anatomy — Stock Photo
    Human jaw bone anatomy
    Closeup of Amoeba, computer illustration — Stock Photo
    Closeup of Amoeba, computer illustration
    Small intestine wall — Stock Photo
    Small intestine wall
    Human fetus developing at week 6, computer illustration. — Stock Photo
    Human fetus developing at week 6, computer illustration.
    Acetobacter bacteria colony — Stock Photo
    Acetobacter bacteria colony
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Spinal cord anatomy — Stock Photo
    Spinal cord anatomy
    West Nile virus particles, computer illustration. West Nile virus (WNV) is known to cause encephalitis in humans. — Stock Photo
    West Nile virus particles, computer illustration. West Nile virus (WNV) is known to cause encephalitis in humans.
    Measles virus particles, digital illustration. — Stock Photo
    Measles virus particles, digital illustration.
    Plague bacteria (Yersinia pestis), computer illustration. Y. pestis are gram-negative bacteria from the Enterobacteriaceae family, they have an ovoid shape with bipolar staining (more intensively stained at poles) — Stock Photo
    Plague bacteria (Yersinia pestis), computer illustration. Y. pestis are gram-negative bacteria from the Enterobacteriaceae family, they have an ovoid shape with bipolar staining (more intensively stained at poles)
    Lower arm bone structure and functional anatomy — Stock Photo
    Lower arm bone structure and functional anatomy
    Human brain anatomy, 3D illustration. Lobes of the brain are colour-coded: frontal lobe (Pink), parietal lobe (blue), occipital lobe (orange) and temporal lobe (yellow). — Stock Photo
    Human brain anatomy, 3D illustration. Lobes of the brain are colour-coded: frontal lobe (Pink), parietal lobe (blue), occipital lobe (orange) and temporal lobe (yellow).
    Normal X chromosome — Stock Photo
    Normal X chromosome
    Norwalk virus particle — Stock Photo
    Norwalk virus particle