Responses of blood vessels in the resting hand and forearm to various stimuli
Responses of blood vessels in the resting hand and forearm to various stimuli
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DOI：
10.1016/s0002-8703(40)90195-8
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发表时间：
1940-01-01
影响因子：
4.8
通讯作者：
Ferris, EB Jr
中科院分区：
文献类型：
--
作者：
Abramson, DI;Ferris, EB Jr
测量了手部和前臂的血流量，并研究了这种血流量对各种刺激的反应。对30名受试者进行了捏紧和脑力劳动的效果研究。手部的血流量在所有刺激下都有规律地减少，而在刺激引起血压升高的情况下，前臂的血流量要么不受影响，要么普遍增加。刺激引起的肢体体积缩小可能是手部静脉和小动脉收缩的结果，而前臂几乎完全是静脉收缩的结果。通常发生的体积增加主要是被动小动脉扩张的结果。
Plethysmographic measurements of the blood flow in the hand and forearm were made and the responses of this blood flow to various stimuli were studied. The effect of pinching and mental effort was studied in 30 subjects. The blood flow in the hand regularly diminished in response to all stimuli whereas that of the forearm was either unaffected or generally increased in those instances in which stimuli caused a rise in blood pressure. The diminution in limb volume caused by the stimuli may be the result both of venous and arteriolar constriction in the hand and almost solely of venous constriction in the case of the forearm. The increase in vol. which often occurs is largely the result of passive arteriolar dilatation.