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Similarly, the downward force on the cube is the pressure on the top surface integrated over its area. The surface is at constant depth, so the pressure is constant. Therefore, the integral of the pressure over the area of the horizontal top surface of the cube is the hydrostatic pressure at that depth multiplied by the area of the top surface.
When in lying position, the body may assume a great variety of shapes and positions. The following are the basic recognized positions: Supine position: lying on the back with the face up; Prone position: lying on the chest with the face down ("lying down" or "going prone") Lying on either side, with the body straight or bent/curled forward or ...
Orthostatic hypotension can be confirmed by measuring a person's blood pressure after lying flat for 5 minutes, then 1 minute after standing, and 3 minutes after standing. [29] Orthostatic hypotension is defined as a fall in systolic blood pressure of at least 20 mmHg or the diastolic blood pressure of at least 10 mmHg between the supine ...
Fluid which collects in the back of the throat can also flow down into the lungs. Another complication can be stomach acid burning the inner lining of the lungs, causing aspiration pneumonia . Placing a patient in the recovery position gives gravity assistance to the clearance of physical obstruction of the airway by the tongue, and also gives ...
Supine: lying on the back on the ground with the face up. Prone: lying on the chest with the face down ("lying down" or "going prone"). See also "Prostration". Lying on either side, with the body straight or bent/curled forward or backward. The fetal position is lying or sitting curled, with limbs close to the torso and the head close to the knees.
The longer the duration of the pressure, the less pressure the body can endure. However, the body can endure a large amount of pressure for brief periods of time. The amount of pressure on the tissue is based on the size of the area of the contact: the smaller the point of pressure, the greater effect it will have on the tissue.
"Ptosis" being the defining term, any or all of the organs may be displaced downward. When only the intestines are involved, the condition is known as enteroptosis. When the stomach is found below its normal position, the term gastroptosis is used. The condition exists in all degrees of severity and may not give rise to any adverse symptoms.
The decrease in cardiac filling pressure and stroke volume during the orthostatic stress due to a decreased blood volume is what causes orthostatic intolerance. [63] Orthostatic intolerance can result in temporary loss of consciousness and posture, due to the lack of pressure and stroke volume. [ 64 ]