Leukaemia blood cells, light micrograph

Blood clot, SEM

Blood clot, SEM

Activated platelets, SEM

Blood clot, SEM

Activated platelets, SEM

Blood clot, SEM

Red blood cells and platelets, SEM

Red blood cells and platelets, SEM

White blood cells and a platelet. Coloured scanning electron micrograph (SEM) of white blood cells and a single platelet (green, small). Platelets are fragments of white blood cells that under normal circumstances are small and biconcave in form....

White blood cells and a platelet. Coloured scanning electron micrograph (SEM) of white blood cells and a single platelet (red). Platelets are fragments of white blood cells that under normal circumstances are small and biconcave in form. However, if...

Activated platelets. Coloured scanning electron micrograph (SEM) of activated platelets attached to surgical gauze. Platelets are tiny blood cells that help the body form clots to stop bleeding. If a blood vessels gets damaged, it sends out signals...

Muscular artery

Human red blood cells and activated platelets trapped in a fibrin blood clot, coloured scanning electron micrograph (SEM). Platelets in the blood are small oval disks and are termed nonactivated platelets or thrombocytes. Platelets serve as the body's...

Thrombin blood-clotting enzyme molecule

Computer illustration showing human lung anatomy and a light micrograph of a section through healthy lung tissue showing alveoli (air sacs, white). The alveoli are the site of gaseous exchange, where oxygen enters the blood and carbon dioxide is removed.

Human red blood cells trapped in a fibrin blood clot, coloured scanning electron micrograph (SEM). Human red blood cells trapped in a fibrin blood clot. Platelets (not seen) are cell fragments in the blood that play an essential role in blood clotting...

Human red blood cells and activated platelets trapped in a fibrin blood clot, coloured scanning electron micrograph (SEM). Platelets in the blood are small oval disks and are termed nonactivated platelets or thrombocytes. Platelets serve as the body's...

Human red blood cells trapped in a fibrin blood clot, coloured scanning electron micrograph (SEM). Human red blood cells trapped in a fibrin blood clot. Platelets (not seen) are cell fragments in the blood that play an essential role in blood clotting...

Computer illustration showing human lung anatomy and a light micrograph of a section through healthy lung tissue showing alveoli (air sacs, white). The alveoli are the site of gaseous exchange, where oxygen enters the blood and carbon dioxide is removed.

Activated platelets with channels of the open canalicular system (OCS), coloured scanning electron micrograph (SEM). Platelets are blood cell fragments that play an essential role in blood clotting and wound repair, and can also activate certain...

Illustration of human kidney and light micrograph of a section through a kidney cortex showing a glomerulus (round). A glomerulus forms part of the kidney's functional unit, the nephron, of which there are about one million in a kidney. A glomerulus...

Activated platelets with channels of the open canalicular system (OCS), coloured scanning electron micrograph (SEM). Platelets are blood cell fragments that play an essential role in blood clotting and wound repair, and can also activate certain...

Activated platelets, coloured scanning electron micrograph (SEM). Platelets are blood cell fragments that play an essential role in blood clotting and wound repair, and can also activate certain immune responses. They are formed in the red bone...

Epididymis, light micrograph

Blood clot, artwork

Cervix, light micrograph

Coccidiosis, light micrograph

Colon, light micrograph

Epididymis, light micrograph

Glomerulonephritis, light micrograph

Blood clot, artwork

Nerve fibres, light micrograph

Immature fluke, light micrograph

Skin cancer, light micrograph

Bone cancer, light micrograph

Blood clot, light micrograph