| benign paroxysmal postural vertigo | A recurrent, brief form of postural vertigo occurring in clusters; believed to result from displaced remnants of utricular otoconia. Synonym: cupulolithiasis. (05 Mar 2000) |
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| postural | <anatomy> Pertaining to posture or position. (18 Nov 1997) |
| postural albuminuria | The appearance of albumin in the urine when the patient is erect and its disappearance when recumbent. Synonym: orthostatic proteinuria, postural proteinuria, postural albuminuria. (05 Mar 2000) |
| postural contraction | Maintenance of muscular tension (usually isometric) sufficient to maintain posture. (05 Mar 2000) |
| postural drainage | Drainage used in bronchiectasis and lung abscess. The patient's body is positioned so that the trachea is inclined downward and below the affected chest area. (05 Mar 2000) |
| postural hypotension | <cardiology> The manifestation of low blood pressure when rising from a chair or bed. A drop in blood pressure that is precipitated by changes in body position. May be related to hydration status, drug side effect or be caused by a dysfunction in the autonomic nervous systems ability to maintain blood pressure with positional changes (for example autonomic neuropathy secondary to diabetes). (27 Sep 1997) |
| postural ischemia | The reduced blood pressure and flow induced in a part, e.g., the leg or foot, by raising it above the heart level; used to reduce bleeding during surgical operations on the extremities. (05 Mar 2000) |
| postural myoneuralgia | Muscle pain associated with cramped position, stress of standing with improper posture, etc. Origin: myo-+ G. Neuron, nerve, + algos, pain (05 Mar 2000) |
| postural position | The usual position of the mandible when the patient is resting comfortably in the upright position and the condyles are in a neutral unstrained position in the glenoid fossae. See: rest relation. Synonym: postural position, postural resting position, rest position. (05 Mar 2000) |
| postural reflex | Responses that control the position of the trunk and extremities. See: righting reflexes. Synonym: static reflexes. (05 Mar 2000) |
| postural set | An overall motor readiness to respond, as in a runner instructed to get set and on the mark. (05 Mar 2000) |
| postural syncope | Syncope upon assuming an upright position; caused by failure of normal vasoconstrictive mechanisms. (05 Mar 2000) |
| postural tremor | Tremor present when the limbs or trunk are kept in certain positions and when they are moved actively, usually due to near-synchronous rhythmic bursts in opposing muscle groups. Synonym: static tremor. (05 Mar 2000) |
| postural version | Nonmanual version obtained by changing the position of the mother. (05 Mar 2000) |
| postural vertigo | Light-headedness that appears particularly in elderly people with change of position usually from lying or sitting to standing; due to orthostatic hypotension. (05 Mar 2000) |