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运动肌的发展头三个月的婴儿已经逐步具有对双臂、双腿和身体运动的控制能力。婴儿从刚出生时的那种不自觉的活动已逐步转向某种固定的形式。婴儿头部的控制能力已经有了明显的加强。出生不满一个月的婴儿,如果大人在抱起他时未能牢牢地托住其头部,他的头部就会象玩具娃娃那样不由自主地晃动。但是到了三个月,婴儿不论是俯卧还是仰卧,已经具有对头部的某种控制能力。如果你让一个三个月的婴儿仰躺在一条舒适的毯子上,当孩子一旦变得无拘无束和心满意足时,您把他的小手握在您的手中,作出一种要把他拉起的姿势,
The development of motor muscle The first three months of infancy has gradually been able to control the arms, legs and body movements. The baby’s unconscious activity from the time of birth has gradually shifted to some form of fixation. Baby’s head control has been significantly enhanced. A baby born less than a month old, if an adult fails to hold her head firmly while picking him up, his head sways involuntarily like a doll. But in three months, the baby, whether prone or prone, already had some control over the head. If you allow a three-month-old baby to lie on a comfortable blanket, and once the child becomes free and satisfied, you hold his little hand in your hand and make a gesture to pull him up,