Rojaltivapaat kuvat An image showing a number of transparent pill capsules containing strands of DNA.

Rojaltivapaat kuvat A posterolateral view (left side) of the brainstem relative to the brain. The cerebral nuclei are i

Rojaltivapaat kuvat Angioplasty is the mechanical widening of a narrowed or totally-obstructed blood vessel. A balloon c

Rojaltivapaat kuvat A superior anterolateral view of the left breast. Illustration dipicting cancer in glandular tissue

Rojaltivapaat kuvat A lateral view (left side) of the respiratory system relative to the ribcage.

Rojaltivapaat kuvat An anterolateral view (left side) of the lower leg affected by the skin disease pyoderma gangrenosum

Rojaltivapaat kuvat An anterior view of the pancreatic duct. The stomach has been removed.

Rojaltivapaat kuvat A magnified conceptual visualization of multiple coccus bacteria on a cellular surface.

Rojaltivapaat kuvat A stylised scanning electron microscopic image of the rod shaped bacteria Bacillus anthracis.

Rojaltivapaat kuvat An anterior view of the digestive system. The urinary system and prostate gland are included.

Rojaltivapaat kuvat Candida albicans is a diploid asexual fungus (a form of yeast). It causes oral and genital infection

Rojaltivapaat kuvat A stylised scanning electron microscopic image of the avian flu virus.

Rojaltivapaat kuvat An adult female mosquito piercing skin.

Rojaltivapaat kuvat An anterolateral view (right side) of the brain.

Rojaltivapaat kuvat An anterolateral view (right side) of the brain. The brainstem and cerebral nuclei are included.

Rojaltivapaat kuvat A scanning electron image of red and white blood cells.

Rojaltivapaat kuvat A posterior view of the vertebral column. The cervical, thoracic lumbar and sacral vertebrae are hig

Rojaltivapaat kuvat An anterolateral view (left side) of the muscles of the chest and upper arm relative to the skeleton

Rojaltivapaat kuvat A mast cell contains many granules rich in histamine and heparin. It has roles in allergy and anaphy

Rojaltivapaat kuvat A microscopic view of sperm fertilising an ovum.

Rojaltivapaat kuvat An inferior posterolateral view (left side) of the skeletal system. The surface anatomy of the body

Rojaltivapaat kuvat An anterior view of the muscles of the left shoulder and upperarm.

Rojaltivapaat kuvat A stylised view of a stem cell surrounded by red blood cells.

Rojaltivapaat kuvat An image of various types bacteria and viruses.

Rojaltivapaat kuvat Asthma is a chronic disease of the respiratory system in which the airway occasionally constricts an

Rojaltivapaat kuvat An anterior view of the blood vessels of the upper body.

Rojaltivapaat kuvat A superior anterior view of the blood supply of the trunk. The surface anatomy of the body is semi-t

Rojaltivapaat kuvat An anterolateral view (right side) of the digestive system relative to the skeleton and vascular sys

Rojaltivapaat kuvat An inferior, anterolateral view (left side) of the liver relative to the digestive system.

Rojaltivapaat kuvat A stylised image showing a segement of a strand of DNA. DNA contains the genetic instructions for th

Rojaltivapaat kuvat The needle of a syringe with drops of blood below it.

Rojaltivapaat kuvat A midsagittal section of the head and neck.

Rojaltivapaat kuvat An anterior view of the heart. The coronary blood vessels are also included.

Rojaltivapaat kuvat An anterior view of the urinary system and blood supply of the upper body relative to the skeleton.

Rojaltivapaat kuvat An anterolateral view (right side) of the upper digestive system, pancreas and gall bladder, The ki

Rojaltivapaat kuvat An anterior view of the respiratory system. The bronchial tree is also visible.

Rojaltivapaat kuvat An anterolateral view (right side) of the bones of the head, neck and face.

Rojaltivapaat kuvat A lateral view (right side) of the vertebral column.

Rojaltivapaat kuvat A stylised view of red and white blood cells. Platelets and fibrin are also included.

Rojaltivapaat kuvat An anterior view of the blood supply of the upper body. The surface anatomy of the body is semi-tran

Rojaltivapaat kuvat A posterior view of the brainstem. The cerebral cerebral nuclei are also included.

Rojaltivapaat kuvat An anterior view of the blood supply of the kidneys.

Rojaltivapaat kuvat A scanning electrom microscopic image of HIV. The glycoprotein complex on its surface enables the vi

Rojaltivapaat kuvat Sectional anatomy of the ear. The external, middle and inner ear are shown.

Rojaltivapaat kuvat Metastasis is a complex series of steps in which cancer cells leave the original tumor site and migr

Rojaltivapaat kuvat A scanning electron microscopic image of a cancer cell and its processes on a cellular surface.

Rojaltivapaat kuvat A lateral view of the vertebral column.

Rojaltivapaat kuvat A lateral view (right side) of the brainstem relative to the brain. The cerebral nuclei are included