The normal body temperature of people is around 37℃, while Xiaoling's body temperature is 39. 1℃, which is on the high side. The normal heart rate of adults is 60- 100 beats/min, with regular rhythm. Below 60 beats/min is called bradycardia, and above 100 beats/min is called tachycardia. Xiaoling's tonsils are swollen and inflamed, and white blood cells can be deformed. When bacteria invade the human body, white blood cells can enter the tissue through the capillary wall and devour bacteria. Therefore, white blood cells have the function of defending against diseases. When inflammation occurs in the human body, the number of white blood cells in the blood will increase significantly. Intravenous injection will be performed in the upper limbs. The route of drugs reaching the focus is: upper limb vein → superior vena cava → right atrium → right ventricle → pulmonary artery → pulmonary capillary → pulmonary vein.
So the answer is:1235; Superior vena cava; Left ventricle.