the location of a body or object in space that may be specified by co-ordinates (e.g. Cartesian or polar).
flank position recumbent posture; patient lies on his/her side with lower leg flexed and upper leg extended
Fowler's position head of bed is raised to maximize arterial flow to lower limbs, in patients with peripheral ischaemia
recovery position patient lies on his/her side with lower leg extended and upper leg flexed at knee and hip (i.e. resting on floor in front of patient); lower arm is extended and placed just posterior to the back, and upper arm flexed at the elbow (lower side of face rests on dorsum of upper hand); lower jaw is pulled forward and neck extended to maintain an open airway
Trendelenburg position patient lies supine (on his/her back) with the couch inclined to 45° (pelvis is higher than head); arterial blood flow into the limbs is minimized and venous drainage maximized; used in treatment of shock
The way in which the eyes are arranged.
active position Position of the eyes characterized by foveal fixation of an object by both eyes. Thus, they are under the control of postural, fixation and fusion reflexes. See esophoria ; exophoria ; passive position; reflex .
cardinal position's of gaze These are the following six version movements of the eyes: dextroversion (to the right), laevoversion (to the left), dextroelevation (up to the right), laevoelevation (up to the left), dextrodepression (down to the right), and laevodepression (down to the left).
See motility test; version .
diagnostic position's of gaze Method of evaluating the integrity of the extraocular muscles by testing the primary, the four secondary and the four tertiary positions of gaze, monocularly or binocularly. See motility test; version .
passive position Position of the eyes when they are only under the control of the postural and fixation reflexes, but not the fusion reflex, as, for example, when one eye is covered and the other is fixating an object. See heterophoria .
primary position The position of an eye in relation to the head, from which a pure vertical and a pure horizontal movement is not associated with any degree of torsion. The eye is usually, but not necessarily, in the straight ahead (straightforward ) position. See centre of rotation of the eye ; torsion .
position of rest, anatomical Position of the eyes when they are completely devoid of tonus, as in death.
position of rest, physiological Position of the eyes when they are only under the control of the postural reflexes, but completely free from any visual stimuli. See resting state of accommodation; initial convergence; tonus ; tonic vergence.
secondary position Movement of an eye represented by a horizontal or vertical rotation away from the primary position. See version .
straight ahead position; straightforward position See centre of rotation of the eye ; primary position.
tertiary position Movement of an eye to an oblique position, as, for example, 'up and in'. See version .
( pŏ-zish'ŏn )
1. An attitude, posture, or place occupied.