注目の話題: この人はやめるべき？; エールをください; 余裕を持った行動はしないのでしょうか。

Science,English,and math Ⅱ

No.11　17/03/25 16:00
燻し銀三 ( 50代 ♂ Oe38xe ) あ+あ-

【Putting together the functions in the body】

《The nervous system》

What to receive,or what to feel is sent or received with the electrical signal in the nervous system,the center of its role is the central nerves,from the cerebrum 大脳. The net of peripheral nerve 末梢神経 spreads over the whole body from the cerebrum. Its basic unit is connection of nerve cells. We also call the nerve cell neuron.

《The system of blood vessel》

The system of blood vessel delivers necessary materials over the whole body,and collects unnecessary ones. Its center of the role is the heart in the breast. The net of the blood vessel spreads over the whole body from the heart through the order of the artrey,the capillary tube 毛細血管,and the vein.

《The respiratory system 呼吸器系統》

An alveolus 肺胞 is a basic unit in the lung. The oxygen is absorbed in the alveolus. The waste of the carbon dioxide is discharged from the alveolus into the blood at the same time. Its center of the role is the breast and the lung.