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
外语
Without regular supplies of some hormones our capacity to behave would be seriously impaired; without others we would soon die.
Without regular supplies of some hormones our capacity to behave would be seriously impaired; without others we would soon die.
admin
2011-02-10
38
问题
Without regular supplies of some hormones our capacity to behave would be seriously impaired; without others we would soon die. Tiny amounts of some hormones can modify moods and actions, our inclination to eat or drink, our aggressiveness or submissiveness, and our reproductive and parental behavior. And hormones do more than influence adult behavior; early in life they help to determine the development of bodily form and may even determine an individual’s behavioral capacities. Later in life the changing outputs of some endocrine glands and the body’s changing sensitivity to some hormones are essential aspects of the phenomena of aging.
Communication within the body and the consequent integration of behavior were considered the exclusive province of the nervous system up to the beginning of the present century. The emergence of endocrinology as a separate discipline can probably be traced to the experiments of Bayliss and Starling on the hormone secretion. This substance is secreted from cells in the intestinal walls when food enters the stomach; it travels through the bloodstream and stimulates the pancreas to liberate pancreatic juice, which aids in digestion. By showing that special cells secrete chemical agents that are conveyed by the bloodstream and regulate distant target organs or tissues. Bayliss and Starling demonstrated that chemical integration could occur without participation of the nervous system.
The term "hormone" was first used with reference to secretion. Starling derived the term from the Greek hormone, meaning "to excite or set in motion". The term "endocrine" was introduced shortly thereafter. "Endocrine" is used to refer to glands that secrete products into the bloodstream. The term "endocrine" contrasts with "exocrine", which is applied to glands that secrete their products though ducts to the site of action. Examples of exocrine glands are the tear glands, the sweat glands, and the pancreas, which secrete pancreatic juice through a duct into the intestine. Exocrine glands are also called duct glands, while endocrine glands are called ductless glands.
What is the author’s main purpose in the passage? ______
选项
A、To explain the specific functions of various hormones.
B、To provide general information about hormones.
C、To explain how the term "hormone" evolved.
D、To report on experiments in endocrinology.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/MAcO777K
本试题收录于:
NAETI中级口译笔试题库外语翻译证书(NAETI)分类
0
NAETI中级口译笔试
外语翻译证书(NAETI)
相关试题推荐
Inthepopularmind,theInternetistherealizationoftheglobalvillage,wheretheflowofinformationandideasisunimpeded
Modernindustrialsocietygrantslittlestatustooldpeople.Infact,suchasocietyhasasystemofbuilt-inobsolescence.The
Thefeelingofcompetitionamongthestudentsinalltheclassroomswherethetestwasgoingonwasnoticeabletoeveryone.
Allthestudentsofthisuniversityhavefree________totheInternetviaabroadbandconnection.
OfalltheemployedworkersintheUnitedStates,12.5millionarepartofatemporaryworkforce.TheUnitedStatesBureauofLa
Americanswhoconsiderthemselves________inthetraditionalsensedonotusuallyhesitatetoheapcriticismindomesticmatters
EQEQisinnate.Infantsasyoungasthreemonthsshowempathy.Nowhereisthediscussionofemotionalintelligencemorep
Theprincipallookedatthisverydarkwomanandthisverypalechildandthoughtabouthowgenesweremiraculousandstrange,b
A、Lastyearthisbookwashalftheprice.B、Ireadthisbooktwotimeslastyear.C、YoureadthatbooktwiceasfastasIdid.D
Astheever-increasingpopularityofcomputerandinternet,thelifeandthelifestylehasgreatlybeenaltered.Thefuturewor
随机试题
土工合成材料在土建工程中应用时,不同的部位应使用不同的材料,其功能主要有()。
在利润表中,净利润等于利润总额减去()。
收发货人、报关企业应当在收到海关补充申报电子指令之日起_________个工作日内,通过系统向海关申报电子数据补充申报单。
根据合同法律制度的规定,建设工程承包人行使优先权的期限为( )。
制定资产评估计划的主要环节包括()。
关于预算的编制方法,下列说法中正确的是( )。
A.Thr的羟基B.Ser的羟基C.两者均有D.两者均无可与糖链形成O-糖苷键
D公司预期未来每年产生的永续现金流量在经济状况好的情况下为1500万元,经济状况不好的情况下只有500万元,预计经济状况好的可能性为60%,经济状况不好的可能性为40%。要求:假设企业处于完美资本市场中,如果企业借入了5000万元的债务,债务的期望报
Whohasbeenasupporterofthearts?WherewillthenewplayonFebruary8thbeginperformancesat?
A、Three.B、Nine.C、Five.D、Ten.A细节题。文章中明确提到每个学生在每年夏天需要做三周的全职学生。
最新回复
(
0
)