Show WHY IS IT Why is It that th the doctor can tell the temperature of ot a n tick sick person by feeling his pulse Although it Jt t ma may seem to us that the the little wave of or art arterial blood that throbs BO go steadily in to our u wrist has hall nothing to todo todo todo do with our temperature the two are arev v very r closely connected Every Ever time the heart beats It starts start a wave of blood which we call caU the pulse puls throbbing Now o if It there IB III some poison polson in n the blood which makes us sick alck the heart beats beat tast faster r than thun usual or ot slower than n usual rind and the pulse puls throbs fast or slow accordingly The Tho sickness s that th disturbs disturbs dis dis- tur the tho heart also disturbs that part of tho the brain that controls the temperature tempera tempera- ture lure and aa as the pulse Is strong or weak the temperature Is high or low so when the doctor puts his finger on our wrists ho Ito knows Just dust how much fever lever we h have hc c |