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Science,English,and math Ⅱ

No.1　17/03/07 00:42
燻し銀三 ( 50代 ♂ Oe38xe ) あ+あ-

【Putting the internal organ away in the body】

《The system of the circulatory organ》

The heart is set at the back of the breastbone. Then main artery starts from the heart. It advances toward the head and it draws a hairpin curve and goes down through the side of the backbone. It branches into the two directions of right and left at the height of the waist and goes to the both of the feet.

The artery which goes to the both arms diverges right and left above the hairpin curve. The artery which goes to the right arm branches into other artery which goes to the head on the way.Renal artery 腎動脈 of left and right starts at the height of the waist. Veins accompany the artreies.

Putting the system of the circulatory organ in the body is over.

《The system of the respiratory organ 呼吸器》

Lungs of which shape is a fan are set at the left and right on the breast. Both of the lungs are connected with tubes called the trachea 気管 at the center of the breast,and the tubes are collected to on …