首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
自考
In general, as soon as the newborn child’s muscles, sense organs, and nerves are fully formed, the child begins to use them. But
In general, as soon as the newborn child’s muscles, sense organs, and nerves are fully formed, the child begins to use them. But
admin
2013-07-02
65
问题
In general, as soon as the newborn child’s muscles, sense organs, and nerves are fully formed, the child begins to use them. But much of the human nervous system is not fully developed until the child is a year or two old, and some parts, such as the corpus callosum, continue to mature for at least the next 20 years.
The general pattern of bodily development is from head to foot. Simple skills, such as head movements, appear first because the structures that control these skills are among the first to mature. More complex behavior patterns, such as crawling, standing, and walking, come much later in the developmental sequence than head movements do.
The motor centers in the brain are connected by long nerve fibers(usually through one or more synapses) to the muscles in various parts of the body. Since the head muscles are closer to the brain than the foot muscles, according to one theory, the head comes under the control of the motor centers long before the feet do. The appearance of a new motor skills(such as crawling and grasping)always suggests that a new part of the child’s body has just matured-that is, that the brain centers have just begun to control the muscles involved in the new motor skill.
Why do the head muscles come under control of the motor centers long before the foot ones do? ( )
选项
A、Because the head has a shorter distance to the brain than the feet do.
B、Because the head muscles have a longer distance to the brain than the foot ones do.
C、The head muscles are more important than the foot muscles.
D、All of the above are not true.
答案
A
解析
细节题。“为什么头部肌肉要比脚部肌肉更先受到中枢神经的控制?”文章第三段第二句话Since the head muscles…long before the feet do便是本题答案。
转载请注明原文地址:https://kaotiyun.com/show/LPrx777K
本试题收录于:
英语阅读(一)题库文史类分类
0
英语阅读(一)
文史类
相关试题推荐
Regularinteractionorfamiliarityseemstoincreaseliking;often,thepeopleweinteractwiththemostaresimplythosewhoar
ThomasAlvaEdisonwasawardedmorepatentsoninventionsthananyofotherAmerican.Whenhediedin1931,Americanswonderedh
ThomasAlvaEdisonwasawardedmorepatentsoninventionsthananyofotherAmerican.Whenhediedin1931,Americanswonderedh
Itbeganasagame:highschoolandcollegestudentsstudyingcomputertechnologyfiguredouttheycouldusepersonalcomputers
Itbeganasagame:highschoolandcollegestudentsstudyingcomputertechnologyfiguredouttheycouldusepersonalcomputers
Ineverysocietyitisnecessarytohaveageneralsystemoflawstoensurejustice.Lawsaredesignedtomakecertainthatpeop
ThetragicsenseturnsintodespairinThomasHardy’s______,wherecorneredbythetraditionsocialmorality,theheroandthe
WhileMarkTwainandHowellsseemedtohavepaidmoreattentiontothe"life"oftheAmericans,HenryJameshadapparentlylaida
ThomasHardywrotenovelsof______.()
随机试题
女性,32岁。进餐时与人发生口角后,突觉呼吸困难。查体:呼吸浅表频数达80次/分,无呼吸音。该患者最可能的诊断是
控制化学位移伪影的措施不包括
瘤胃蠕动次数稀少,力量微弱,一般与下列疾病无关
暂不征收个人所得税的项目是()。
证券公司净资本或其他风险控制指标不符合规定标准的,中国证监会派出机构应当责令公司限期改正。整改期内,中国证监会及其派出机构应当区别情形对证券公司采取的措施包括()。
关于货币供给机制的说法,错误的是()。
钢化玻璃属于安全玻璃,通常使用化学或物理的方法,提高了玻璃的承载能力,增强玻璃自身抗压性、寒暑性、冲击性等。下列关于钢化玻璃,描述正确的是()。
A、18B、20C、25D、32A9+4+4+4—3=18,10+2+6+4一4=18,9+2+7+5—5=18,选A。
设a>0,且,则a=______,b=______.
假设某文件系统的物理结构采用类UNIX的二级索引结构。主索引表有12项,前10项给出文件前10块的磁盘地址,第11项给出一级索引表的地址,第12项给出二级索引表的地址。一级和二级索引表的大小均为一个磁盘块,可存放100个磁盘地址。在找到主索引表之后,要访问
最新回复
(
0
)