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    3d illustration of activated platelets and thrombocytes while healing and closure of wound. — Stock Photo
    3d illustration of activated platelets and thrombocytes while healing and closure of wound.
    Cardiovascular system of an adult — Stock Photo
    Cardiovascular system of an adult
    Heart of glass anatomy — Stock Photo
    Heart of glass anatomy
    Virus particles in blood stream, digital illustration. — Stock Photo
    Virus particles in blood stream, digital illustration.
    Schematic representation of human vein structure — Stock Photo
    Schematic representation of human vein structure
    Human cardiovascular system — Stock Photo
    Human cardiovascular system
    Human brain anatomy — Stock Photo
    Human brain anatomy
    Anatomy of bowman glomerular capsule — Stock Photo
    Anatomy of bowman glomerular capsule
    Medical illustration of blood vessels anatomy — Stock Photo
    Medical illustration of blood vessels anatomy
    Medical illustration of arteries, veins and lymphatic system in human legs and feet — Stock Photo
    Medical illustration of arteries, veins and lymphatic system in human legs and feet
    Cholesterol plaque leading to atherosclerosis — Stock Photo
    Cholesterol plaque leading to atherosclerosis
    Section of a muscular artery — Stock Photo
    Section of a muscular artery
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Skeletal and cardiovascular systems — Stock Photo
    Skeletal and cardiovascular systems
    Medical illustration of female circulatory system with heart and arteries — Stock Photo
    Medical illustration of female circulatory system with heart and arteries
    Cross-section of human artery — Stock Photo
    Cross-section of human artery
    Illustration of platelets (thrombocytes) that have been activated (with extensions) and those that are non-activated. Platelets are part of the blood. When a blood vessel is damaged, the platelets become activated and secrete chemicals that cause the — Stock Photo
    Illustration of platelets (thrombocytes) that have been activated (with extensions) and those that are non-activated. Platelets are part of the blood. When a blood vessel is damaged, the platelets become activated and secrete chemicals that cause the
    Medical illustration of human circulatory system — Stock Photo
    Medical illustration of human circulatory system
    Human vein showing tissue stratification — Stock Photo
    Human vein showing tissue stratification
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Internal organs and skeletal system — Stock Photo
    Internal organs and skeletal system
    Coloured scanning electron micrograph of human red blood cells, white blood cells and platelets. — Stock Photo
    Coloured scanning electron micrograph of human red blood cells, white blood cells and platelets.
    Vascular system of healthy adult — Stock Photo
    Vascular system of healthy adult
    Red blood cells on white background, digital illustration. — Stock Photo
    Red blood cells on white background, digital illustration.
    Red blood cells, digital illustration. — Stock Photo
    Red blood cells, digital illustration.
    Skeletal and cardiovascular systems — Stock Photo
    Skeletal and cardiovascular systems
    Healthy red blood cells — Stock Photo
    Healthy red blood cells
    Medical illustration of arteries, veins and lymphatic system in human hand and arm — Stock Photo
    Medical illustration of arteries, veins and lymphatic system in human hand and arm
    Human skeleton with organs and circulatory system — Stock Photo
    Human skeleton with organs and circulatory system
    Coronary angioplasty stent insertion — Stock Photo
    Coronary angioplasty stent insertion
    Red blood cells — Stock Photo
    Red blood cells
    Coloured scanning electron micrograph (SEM) of a section through a vein in the liver, which is filled with red blood cells (erythrocytes, red). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through a vein in the liver, which is filled with red blood cells (erythrocytes, red).
    Colored scanning electron micrograph of human red blood cells erythrocytes, white blood cells leukocytes and platelet thrombocyte. — Stock Photo
    Colored scanning electron micrograph of human red blood cells erythrocytes, white blood cells leukocytes and platelet thrombocyte.
    Colored angiogram of carotid artery in neck of mature patient. — Stock Photo
    Colored angiogram of carotid artery in neck of mature patient.
    Blood supply network of human head — Stock Photo
    Blood supply network of human head
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Blood pressure and circulatory system with labels — Stock Photo
    Blood pressure and circulatory system with labels
    Normal human alveoli anatomy — Stock Photo
    Normal human alveoli anatomy
    Wall of a muscular artery — Stock Photo
    Wall of a muscular artery
    Human vein showing tissue stratification — Stock Photo
    Human vein showing tissue stratification
    Brain's blood supply — Stock Photo
    Brain's blood supply
    Cholesterol plaque leading to atherosclerosis — Stock Photo
    Cholesterol plaque leading to atherosclerosis
    Red blood cells in blood vessel, digital illustration. — Stock Photo
    Red blood cells in blood vessel, digital illustration.
    Blood supply network of human head — Stock Photo
    Blood supply network of human head
    Medical illustration of pulmonary embolism — Stock Photo
    Medical illustration of pulmonary embolism
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Normal red blood cells — Stock Photo
    Normal red blood cells
    Coloured transmission electron micrograph (TEM) of a transverse section through an artery. — Stock Photo
    Coloured transmission electron micrograph (TEM) of a transverse section through an artery.
    Cardiovascular system with emphasis on heart — Stock Photo
    Cardiovascular system with emphasis on heart
    Medical illustration of female breast arteries, veins and lymphatic system — Stock Photo
    Medical illustration of female breast arteries, veins and lymphatic system
    Blood pressure and circulatory system — Stock Photo
    Blood pressure and circulatory system
    Blood vessels of the brain — Stock Photo
    Blood vessels of the brain
    Cardiovascular system of an adult — Stock Photo
    Cardiovascular system of an adult
    Human heart anatomy — Stock Photo
    Human heart anatomy
    Digital illustration showing destruction of lymphoblast cells, acute lymphoblastic leukaemia treatment concept. — Stock Photo
    Digital illustration showing destruction of lymphoblast cells, acute lymphoblastic leukaemia treatment concept.
    Cross-section of human artery — Stock Photo
    Cross-section of human artery
    Astrocyte brain glial cell connecting neuronal cells to blood vessel, digital illustration. — Stock Photo
    Astrocyte brain glial cell connecting neuronal cells to blood vessel, digital illustration.
    Human blood cells, computer illustration — Stock Photo
    Human blood cells, computer illustration
    Human brain with network of blood vessels — Stock Photo
    Human brain with network of blood vessels
    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.