首页
登录
职称英语
The human ear contains the organ for hearing and the organ for balance. Both
The human ear contains the organ for hearing and the organ for balance. Both
游客
2025-04-02
22
管理
问题
The human ear contains the organ for hearing and the organ for balance. Both organs involve fluid-filled channels containing hair cells that produce electrochemical impulses when the hairs are stimulated by moving fluid. The ear can be divided into three regions: outer, middle, and inner. The outer ear collects sound waves and directs them to the eardrum separating the outer ear from the middle ear. The middle ear conducts sound vibrations through three small bones to the inner ear. The inner ear is a network of channels containing fluid that moves in response to sound or movement. To perform the function of hearing, the ear converts the energy of pressure waves moving through the air into nerve impulses that the brain perceives as sound. Vibrating objects, such as the vocal cords of a speaking person, create waves in the surrounding air. These waves cause the eardrum to vibrate with the same frequency. The three bones of the middle ear amplify and transmit the vibrations to the oval window, a membrane on the surface of the cochlea, the organ of hearing. Vibrations of the oval window produce pressure waves in the fluid inside the cochlea. Hair cells in the cochlea convert the energy of the vibrating fluid into impulses that travel along the auditory nerve to the brain.
The organ for balance is also located in the inner ear. Sensations related to body position are generated much like sensations of sound. Hair cells in the inner ear respond to changes in head position with respect to gravity and movement. Gravity is always pulling down on the hairs, sending a constant series of impulses to the brain.
When the position of the head changes — as when the head bends forward — the force on the hair cells changes its output of nerve impulses. The brain then interprets these changes to determine the head’s new position. [br] It can be inferred from paragraphs 2 and 3 that the cochlea is a part of______.
选项
A、the outer ear
B、the eardrum
C、the middle ear
D、the inner ear
答案
D
解析
第二段最后一句“The inner ear is a network of channels containing fluid…”,第三段中“…the cochlea,the organ of hearing”和“…the fluid inside the cochlea.Haircells in the cochlea convert the energy of the vibrating fluid…”可得知,内耳是包含液体的渠道网络,而该液体位于耳蜗中,因此,耳蜗是内耳的一部分。故答案为D。
转载请注明原文地址:https://tihaiku.com/zcyy/4023607.html
相关试题推荐
Scientistsnowtendtoagreethatthenoiselevelforpotentialhearingloss
Scientistsnowtendtoagreethatthenoiselevelforpotentialhearingloss
Scientistsnowtendtoagreethatthenoiselevelforpotentialhearingloss
Scientistsnowtendtoagreethatthenoiselevelforpotentialhearingloss
Mostdoctors______onadietwhichcontainsalotoffat.A、criticizeB、objectC、o
Thehumanearcontainstheorganforhearingandtheorganforbalance.Both
Thehumanearcontainstheorganforhearingandtheorganforbalance.Both
Thehumanearcontainstheorganforhearingandtheorganforbalance.Both
Thehumanearcontainstheorganforhearingandtheorganforbalance.Both
Thehumanearcontainstheorganforhearingandtheorganforbalance.Both
随机试题
"VisualMusic"isafine-tuned,highlydiverting,deceptivelyradicalexhibi
Theobjectinthesentence"ShewishestolearnEnglishfromyou"isA、she.B、Eng
共用题干 某男性患者,40岁。有精神分裂症病史10年,近两月服用大剂量氯氮平治
下列选项中,控烟策略包括()类。A.立法 B.行为 C.教育 D.健康
2014年6月15E1至25日,在卡塔尔首都举行的第38届世界遗产大会上,我国
A.去甲乌药碱B.去甲猪毛菜碱C.青皮酚D.姜酚E.柠檬烯附子升压的成分是
关于胃、十二指肠溃疡的特点准确的是A.多为多发性溃疡 B.直径一般大于2cm
如果说,父母给孩子读的第一本图画书是为了________他们对黑暗的焦虑,___
有关执业药师管理的说法,错误的是A.执业药师注册证的有效期为5年 B.执业药师
某工程项目所用B材料,风险系数为5%,施工期间实际价格435元,基准单价410元
最新回复
(
0
)