Ortostasis
Ortostasis refers to the physiological response of the body to standing upright. It is a complex process involving multiple bodily systems that work together to maintain blood pressure and adequate blood flow to the brain when transitioning from a lying or sitting position to a standing one. This transition typically causes a pooling of blood in the lower extremities due to gravity.
To counteract this, the body employs several mechanisms. The autonomic nervous system plays a crucial role,
A failure or delay in these compensatory mechanisms can lead to orthostatic hypotension, a condition characterized