Glossary with audio assistance
Browse the glossary using this index
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Radiographa visible record on film of the pattern of X-rays passing through a patient | |
Receptorssensory cells that receive information from the environment, in the form of a stimulus, and transfer this information to the brain or spinal cord as a nerve impulse | |
Recessive gene | |
Reflex actiona fast, automatic response to a stimulus | |
Reflex arcthe pathway taken by an action potential leading to a reflex action | |
Renalpertaining to the kidneys | |
Reservoira source of infection | |
Residual volumethe volume of air left in the lungs after the deepest possible expiration; the air that is always in the lungs | |
Resolutionthe ability to distinguish between two objects very close together; the higher the resolution of an image the greater the detail that can be seen | |
Respirationbreathing; exchange of gases - oxygen and carbon dioxide | |