这个问题或许有些太平常了,可是,你并不一定回答得圆满。首先,头部位于人体的最上部,活动量较大,最容易受到来自各个方向的伤害,因此,生产中要戴安全帽。其次,头皮下是颅骨,易受损伤,根据头皮的解剖学特点,头皮是全身表浅血管最丰富的地方,大的动脉主干就有近十条,同时还有同名静脉伴行,这些大血管又逐级分支为 This problem may be somewhat common, but you do not necessarily have to answer satisfactorily. First of all, the head is located in the uppermost part of the human body, with a large amount of activity. It is most vulnerable to injuries from all directions. Therefore, wearing a helmet should be done in production. Second, under the scalp is the skull, vulnerable to injury, according to the anatomical characteristics of the scalp, the scalp is the most abundant surface superficial blood vessels where there are nearly 10 large artery trunk, accompanied by the same vein, these large vessels Step by step as