人们在发高烧前常发生的寒战,只不过是临床表现而已,而在身体内部,体温却在逐渐上升。寒战持续约15—20分钟后,就进入高热与其他自觉症状很明显的阶段。 人体之所以有温暖的感觉,并不是靠深层组织的温度,而是靠分布于皮层组织内的末梢神经感受器的感受。当有血液流经人体浅表的小血管时,血液所携带的热量不断地刺激感受器,就产生温暖的感觉。当高烧开始时,体表血管发生收缩,携带热量的血液此时无法流至体表小 Chills often occur before people have a high fever, but only in clinical manifestations, while in the body, the body temperature is gradually rising. Shiver lasted about 15-20 minutes later, it entered the phase of high fever and other symptoms are obvious. The reason why the human body has a warm feeling, not by deep tissue temperature, but by the distribution of peripheral nerve receptors in the cortex of the feelings. When blood flows through small blood vessels in the superficial human body, the heat carried by the blood continually stimulates the susceptor to create a warm feeling. When the fever starts, the body surface blood vessels contract and the blood carrying the heat can not flow to the small