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两点辨别觉是测试手指辨别两点距离的灵敏性;嵴试验是测试手指对深度感觉的敏感性、是检查手指末梢神经感觉程度的简单易行、无痛无害的方法。如果由于接触振动
Two-point discrimination is the sensitivity of the test finger to distinguish the distance between two points. The ridge test is to test the sensitivity of the finger to the sense of depth and is a simple, painless and harmless method of checking the degree of sensory endings of the finger. If vibration due to contact