Glossary with audio assistance


Browse the glossary using this index

Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL

Page:  1  2  (Next)
  ALL

R

Radiograph

a visible record on film of the pattern of X-rays passing through a patient

Receptors

sensory 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

a gene which is only expressed in the phenotype when no dominant allele is present


Reflex action

a fast, automatic response to a stimulus


Reflex arc

the pathway taken by an action potential leading to a reflex action


Renal

pertaining to the kidneys


Reservoir

a source of infection

Residual volume

the volume of air left in the lungs after the deepest possible expiration; the air that is always in the lungs


Resolution

the ability to distinguish between two objects very close together; the higher the resolution of an image the greater the detail that can be seen


Respiration

breathing; exchange of gases - oxygen and carbon dioxide



Page:  1  2  (Next)
  ALL