Category: P
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Pes hippocampi
The lower portion of the hippocampus major.
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Pes equinus
A deformity marked by walking without touching the heel to the ground.
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Pes equinovarus
A condition in which the heel is turned inward and the foot is plantar flexed.
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Pes anserinus
The network of branches of the facial nerve as it passes through the parotid gland. The term resembling a goose’s foot used to describe the web-like end branches of the facial nerve.
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Pervasive
Spreading widely and deeply; affecting all aspects of something.
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Pertussis immune globulin
A sterile solution of antibodies derived from the blood of adults who have been immunized with pertussis vaccine; used to produce passive immunity to pertussis.
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Perturbation
The state of being greatly disturbed or agitated; uneasiness of mind.
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Pertinent positive
An element of a patient’s history that aids diagnosis because the patient affirms that it is present.
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Pertinent negative
An element of the patient’s history that aids diagnosis because the patient denies that it is present.
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Persulfate
One of a series of sulfates containing more sulfuric acid than the others in the same series.