《生理卫生》P23倒数3-2行:“脊柱由三十多块椎骨构成”、“三十多”,用词模糊。给学生造成了不必要的误解,给教师教学带来了诸多不便。“脊柱由三十多块椎骨构成”。指的应是幼儿脊柱椎骨的大致数目,准确地讲,幼儿的脊柱由33-34块椎骨构成。具体如下:颈椎7块,胸椎12块,腰椎5块,骶椎5块,尾椎4-5块。随着人的生长发育,到了成年,5块 “Physiological hygiene” P23 Countdown 3-2: “The spine consists of more than 30 vertebrae,” “more than 30,” and the words are blurred. To students caused unnecessary misunderstanding, to teachers teaching has brought a lot of inconvenience. “The spine consists of more than thirty vertebrae.” Refers to the approximate number of spine vertebrae in a child, to be exact, the spine of a child consists of 33-34 vertebrae. Specific as follows: 7 cervical, thoracic 12, 5 lumbar, sacral 5, 4-5 caudal. With the growth of people, to the adult, 5