| RADIAL: |
Relating to the radius, a bone in the forearm. |
| RADIAL ARTERY: |
One of the main arteries of the arm, running down its full length into
the hand. Arteries carry blood away from the heart. |
| RADIUS: |
Smaller of the two bones in lower arm. |
| RALES: |
Abnormal breathing sounds, sometimes indicating fluid in the air sacs
of the lung. |
| RASH: |
A group of spots on an area of inflamed skin. |
| RECEPTORS: |
Areas on the outer part of a cell that allow the cell to join or bind
with a substance. |
| RECESSIVE: |
A mode of inheritance in which a gene must be present from both parents
for the trait to become manifest in an offspring. See : dominant. |
| RECTUM: |
The reservoir for feces located between the last (sigmoid) part of
the large bowel and the anus. |
| REMISSION: |
Lessening or disappearance of symptoms of a disease for a time. |
| RED BLOOD CELLS: |
A hemoglobin-containing blood cell, red blood cells (RBC) carry oxygen
in the blood, and supply oxygen from the lungs to tissues throughout the
body.. They are also called red corpuscles. |
| REDIVAC: |
A device for continuously draining fluid via a tube (catheter) from
body cavities. |
| REFLEX: |
An involuntary response to a stimulus. |
| REFLEX, DEEP TENDON: |
Contraction of a muscle in response to tapping the tendon or guider
with a reflex hammer; it requires intact sensory nerve supply to transmit
the stretching of receptors in the muscle, and intact motor nerve supply
for the muscle to contract. |
| REFLUX: |
Backflow or regurgitation. |
| REFRACTORY: |
Not yielding, as in a condition that resists treatment or a nerve or
muscle that resists stimulation. |
| REGURGITATION: |
Backward flow. |
| REJECTION: |
Refusal to accept, as with a transplanted organ. |
| RELAPSE: |
Recurrence of disease or symptoms after apparent recovery. |
| R.E.M. SLEEP: |
The period of sleep known as Rapid Eye Movement sleep, when dreaming
seems to occur. |
| RENAL: |
Relating to the kidneys. |
| RENAL CAPSULE: |
The fibrous connective tissue that surrounds each kidney. |
| RENAL FAILURE: |
The inability of the kidneys to excrete wastes, concentrate urine and
maintain electrolyte balance. |
| RENAL PELVIS: |
The area at the center of the kidney. Urine collects here and is funneled
into the ureter. |
| REPRODUCTIVE SYSTEM: |
In women, the organs that are directly involved in producing eggs and
in conceiving and carrying babies. |
| RESPIRATION: |
Breathing. |
| RESPIRATORY DISTRESS: |
Pathological increase in the effort and frequency of breathing movements. |
| RESPIRATORY FAILURE: |
Inability to maintain normal tensions of oxygen and carbon dioxide
in the blood. |
| RESPIRATORY SYSTEM: |
The organs that are involved in breathing. These include the nose,
throat, larynx, trachea, bronchi, and lungs. |
| RESUSCITATION: |
Revival of breathing or heartbeat after cessation or apparent death. |
| RETINA: |
The innermost layer of the eyeball concerned with receiving images. |
| RETINOPATHY: |
Diseased condition of the retina usually associated with visual impairment. |
| RETROGNATHIA: |
Backwards displacement of the lower jaw. |
| RETROPERITONEAL SPACE: |
The potential space just behind the visceral peritoneum. |
| RH FACTOR: |
A blood factor located in red blood cells. Eighty-five percent of the
population carry the blood factor and are Rh positive. Fifteen percent
are missing the factor from their blood cells and are Rh negative. |
| RHINITIS: |
Inflammation of the nasal mucous membrane usually resulting in thick
catarrhal discharge. |
| RHINO-: |
Relating to the nose. |
| RODS: |
Long, slender structures within the retina that perceive faint light.
Also, rod-shaped bacteria (bacilli). |
| RUPTURE: |
Tearing of tissue (as in a hernia) or disruption of an organ. |
