Haemodynamic response

（重定向自Hemodynamic response）

Brain blood vasculature as a function of blood flow. Red arrows show vascular pruning, while white arrowheads indicate vessel widening in response to increased blood flow.[2]

This sample fMRI shows how there are certain areas of activation during stimulation

In haemodynamics, the body must respond to physical activities, external temperature, and other factors by homeostatically adjusting its blood flow to deliver nutrients such as oxygen and glucose to stressed tissues and allow them to function. Haemodynamic response (HR) allows the rapid delivery of blood to active neuronal tissues. Since higher processes in the brain occur almost constantly, cerebral blood flow is essential for the maintenance of neurons, astrocytes, and other cells of the brain.

单词	Hemodynamic response
释义	Hemodynamic response 英语百科 Haemodynamic response （重定向自Hemodynamic response） In haemodynamics, the body must respond to physical activities, external temperature, and other factors by homeostatically adjusting its blood flow to deliver nutrients such as oxygen and glucose to stressed tissues and allow them to function. Haemodynamic response (HR) allows the rapid delivery of blood to active neuronal tissues. Since higher processes in the brain occur almost constantly, cerebral blood flow is essential for the maintenance of neurons, astrocytes, and other cells of the brain.
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