| physiological rest position |
In dentistry, the position of the mandible at rest when the patient is sitting upright and the condyles are in an unstrained position. The jaw muscles are relaxed. SYN: rest position .
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| physiological salt solution enema |
An enema consisting of normal saline solution. It may be used, on rare occasions, to treat dehydration. SYN: saline enema .
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| physiological scotoma |
A blind spot caused by an absence of rods and cones where the optic nerve enters the retina.
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| physiological shunt |
The route by which pulmonary blood perfuses unventilated alveoli. This process is caused by an imbalance between ventilation and perfusion.
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| physiological sound |
A sound perceived when the auditory canals are closed. The sound is produced by the blood flowing through adjacent vessels.
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