Lying under the skull, the human brain contains an average of the ten billion nerve cells called（）.A、neuronsB、nerve systemC、nervesD、cerebral cortex
Lying under the skull, the human brain contains an average of the ten billion nerve cells called（）.
- A、neurons
- B、nerve system
- C、nerves
- D、cerebral cortex
相关考题：
In the US. one experiment in nerve regeneration involves______(cut)a big nerve in a rat's leg，leaving its leg paralysed.
The cranial nerve that connects to the telencephalon is the()。 A、oculomotor nerveB、trochlear nerveC、olfactory nerveD、optic nerveE、ophthalmic nerve
The parasympathetic nucleus located in the middle brain is the()。 A、oculomotor nucleusB、accessory nucleus of oculomotor nerveC、superior salivatory nucleusD、inferior salivatory nucleusE、dorsal nucleus of vagus nerve
The nerve which is not connected to the medulla oblongata is the()。 A、vestibulocochlear nerveB、glossopharyngeal nerveC、vagus nerveD、accessory nerveE、hypoglossal nerve
共用题干Learning DisabilitiesLearning disabilities are very common.They affect perhaps 1 0 percent of all children.Four times as many boys as girls have learning disabilities.Since about 1970,new research has helped brain scientists understand these problems better.Scientists now know there are many different kinds of learning disabilities and that they are caused by many different things.There is no longer any question that all learning disabilities result from differences in the way the brain is organized.You cannot look at a child and tell if he or she has a learning disability.There is no outward sign of the disorder.So some researchers began looking at the brain itself to learn what might be wrong.In one study,researchers examined the brain of a learning-disabled person who had died in an accident. They found two unusual things.One involved cells in the left side of the brain,which control language.These cells normally are white.In the learning disabled person,however,these cells were gray.The researchers also found that many of the nerve cells were not in a line the way they should have been.The nerve cells were mixed together.The study was carried out under the guidance of Norman Geschwind,an early expert on learning disabilities, Doctor Geschwind proposed that learning disabilities resulted mainly from problems in the left side of the brain. He believed this side of the brain failed to develop normally.Probably,he said,nerve cells there did not connect as they should.So the brain was like an electrical device in which the wires were crossed.Other researchers did not examine brain tissue.Instead,they measured the brain's electrical activity and made a map of the electrical signals.Frank Dully experimented with this technique at Children's Hospital Medical Center in Boston.Doctor Dully found large differences in the brain activity of normal children and those with reading problems.The differences appeared throughout the brain.Doctor Dully said his research is evidence that disabilities involve damage to a wide area of the brain,not just the left side.Scientists found that the brain cells of a learning-disabled person differ from those of a normal person in______.A:structure and functionB:color and functionC:size and arrangementD:color and arrangement
共用题干Learning DisabilitiesLearning disabilities are very common.They affect perhaps 1 0 percent of all children.Four times as many boys as girls have learning disabilities.Since about 1970,new research has helped brain scientists understand these problems better.Scientists now know there are many different kinds of learning disabilities and that they are caused by many different things.There is no longer any question that all learning disabilities result from differences in the way the brain is organized.You cannot look at a child and tell if he or she has a learning disability.There is no outward sign of the disorder.So some researchers began looking at the brain itself to learn what might be wrong.In one study,researchers examined the brain of a learning-disabled person who had died in an accident. They found two unusual things.One involved cells in the left side of the brain,which control language.These cells normally are white.In the learning disabled person,however,these cells were gray.The researchers also found that many of the nerve cells were not in a line the way they should have been.The nerve cells were mixed together.The study was carried out under the guidance of Norman Geschwind,an early expert on learning disabilities, Doctor Geschwind proposed that learning disabilities resulted mainly from problems in the left side of the brain. He believed this side of the brain failed to develop normally.Probably,he said,nerve cells there did not connect as they should.So the brain was like an electrical device in which the wires were crossed.Other researchers did not examine brain tissue.Instead,they measured the brain's electrical activity and made a map of the electrical signals.Frank Dully experimented with this technique at Children's Hospital Medical Center in Boston.Doctor Dully found large differences in the brain activity of normal children and those with reading problems.The differences appeared throughout the brain.Doctor Dully said his research is evidence that disabilities involve damage to a wide area of the brain,not just the left side.Doctor Dully believed that______.A:he found the exact cause of learning disabilitiesB:the problem of learning disabilities did not lie in the left side of the brainC:the problem of learning disabilities resulted from the left side of the brainD:the problem of learning disabilities was not limited to the left side of the brain
共用题干Learning DisabilitiesLearning disabilities are very common.They affect perhaps 1 0 percent of all children.Four times as many boys as girls have learning disabilities.Since about 1970,new research has helped brain scientists understand these problems better.Scientists now know there are many different kinds of learning disabilities and that they are caused by many different things.There is no longer any question that all learning disabilities result from differences in the way the brain is organized.You cannot look at a child and tell if he or she has a learning disability.There is no outward sign of the disorder.So some researchers began looking at the brain itself to learn what might be wrong.In one study,researchers examined the brain of a learning-disabled person who had died in an accident. They found two unusual things.One involved cells in the left side of the brain,which control language.These cells normally are white.In the learning disabled person,however,these cells were gray.The researchers also found that many of the nerve cells were not in a line the way they should have been.The nerve cells were mixed together.The study was carried out under the guidance of Norman Geschwind,an early expert on learning disabilities, Doctor Geschwind proposed that learning disabilities resulted mainly from problems in the left side of the brain. He believed this side of the brain failed to develop normally.Probably,he said,nerve cells there did not connect as they should.So the brain was like an electrical device in which the wires were crossed.Other researchers did not examine brain tissue.Instead,they measured the brain's electrical activity and made a map of the electrical signals.Frank Dully experimented with this technique at Children's Hospital Medical Center in Boston.Doctor Dully found large differences in the brain activity of normal children and those with reading problems.The differences appeared throughout the brain.Doctor Dully said his research is evidence that disabilities involve damage to a wide area of the brain,not just the left side.Which of the following is NOT mentioned in the passage?A:Learning disabilities may result from the unknown area of the brain.B:Learning disabilities may result from damage to a wide area of the brain.C:Learning disabilities may result from abnormal organization of the brain cells.D:Learning disabilities may result from problems in the left side of the brain.
共用题干Learning DisabilitiesLearning disabilities are very common.They affect perhaps 1 0 percent of all children.Four times as many boys as girls have learning disabilities.Since about 1970,new research has helped brain scientists understand these problems better.Scientists now know there are many different kinds of learning disabilities and that they are caused by many different things.There is no longer any question that all learning disabilities result from differences in the way the brain is organized.You cannot look at a child and tell if he or she has a learning disability.There is no outward sign of the disorder.So some researchers began looking at the brain itself to learn what might be wrong.In one study,researchers examined the brain of a learning-disabled person who had died in an accident. They found two unusual things.One involved cells in the left side of the brain,which control language.These cells normally are white.In the learning disabled person,however,these cells were gray.The researchers also found that many of the nerve cells were not in a line the way they should have been.The nerve cells were mixed together.The study was carried out under the guidance of Norman Geschwind,an early expert on learning disabilities, Doctor Geschwind proposed that learning disabilities resulted mainly from problems in the left side of the brain. He believed this side of the brain failed to develop normally.Probably,he said,nerve cells there did not connect as they should.So the brain was like an electrical device in which the wires were crossed.Other researchers did not examine brain tissue.Instead,they measured the brain's electrical activity and made a map of the electrical signals.Frank Dully experimented with this technique at Children's Hospital Medical Center in Boston.Doctor Dully found large differences in the brain activity of normal children and those with reading problems.The differences appeared throughout the brain.Doctor Dully said his research is evidence that disabilities involve damage to a wide area of the brain,not just the left side.According to the passage we can conclude that further researches should be made______.A:to help learning-disabled children to develop their intelligenceB:to study how children learn to read and write,and use numbersC:to investigate possible influences on brain development and organizationD:to explore how the left side of the brain functions in language learning
The method works best cases where total deafness is due to malfunctioning of the ear’s sensory cells.There must be sufficient functioning nerve fibers available to transmit the message to the brain（ ）;there are generally no more than 10 percent remaining in most cases,since they tend to atrophy with disuse.A.fortunatelyB.spontaneouslyC.basicallyD.unfortunately
下列哪些不属于颈浅丛属支 ( )A.lesser occipital nerveB.great auricular nerveC.transverse nerve of nerveD.supraclavicular nerveE.trochlear nerve
共用题干Parkinson's Disease1 Parkinson's disease affects the way you move.It happens when there is a problem with certain nerve cells in the brain. Normally , these nerve cells make an important chemical called dopamine（多巴胺）. Dopa-mine sends signals to the part of your brain that controls movement.It lets your muscles move smoothly and do what you want them to do.When you have Parkinson's,these nerve cells break down.Then you no longerhave enough dopamine,and you have trouble moving the way you want to.2 No one knows for sure what makes these nerve cells break down.But scientists are doing a lot of re-search to look for the answer. They are studying many possible causes,including aging and poisons in the en- vironment.Abnormal genes seem to lead to Parkinson's disease in some people.But so far,there is not enough proof to show that it is always inherited.3 Tremor（颤抖）may be the first symptom you notice.It is one of the most common signs of the disease,although not everyone has it.Tremor often starts in just one arm or leg or only on one side of the body.It may be worse when you are awake but not moving the affected arm or leg. It may get better when you move the limb or when you are asleep.In time,Parkinson's affects muscles all through your body,so it can lead to problems like trouble swallowing or constipation（便秘）.In the later stages of the disease , a person with Parkinson's may have a fixed or blank expression,trouble speaking,and other problems.Some people also have a decrease in mental skills.4 At this time,there is no cure for Parkinson's disease.But there are several types of medicines that can control the symptoms and make the disease easier to live with.You may not even need treatment if your symptoms are mild.Your doctor may wait to prescribe medicines until your symptoms start to get in the way of your daily life.Your doctor will adjust your medicines as your symptoms get worse.You may need to take several medicines to get the best results.You'll find it hard to move the way you want to__________.A:what affects muscles all through your bodyB:if there isn't enough dopamine in your bodyC:which cannot be cured yetD:which may be the first symptom you noticeE:if you have a fixed or blank expression F: what causes Parkinson's disease
共用题干Parkinson's Disease1 Parkinson's disease affects the way you move.It happens when there is a problem with certain nerve cells in the brain. Normally , these nerve cells make an important chemical called dopamine（多巴胺）. Dopa-mine sends signals to the part of your brain that controls movement.It lets your muscles move smoothly and do what you want them to do.When you have Parkinson's,these nerve cells break down.Then you no longerhave enough dopamine,and you have trouble moving the way you want to.2 No one knows for sure what makes these nerve cells break down.But scientists are doing a lot of re-search to look for the answer. They are studying many possible causes,including aging and poisons in the en- vironment.Abnormal genes seem to lead to Parkinson's disease in some people.But so far,there is not enough proof to show that it is always inherited.3 Tremor（颤抖）may be the first symptom you notice.It is one of the most common signs of the disease,although not everyone has it.Tremor often starts in just one arm or leg or only on one side of the body.It may be worse when you are awake but not moving the affected arm or leg. It may get better when you move the limb or when you are asleep.In time,Parkinson's affects muscles all through your body,so it can lead to problems like trouble swallowing or constipation（便秘）.In the later stages of the disease , a person with Parkinson's may have a fixed or blank expression,trouble speaking,and other problems.Some people also have a decrease in mental skills.4 At this time,there is no cure for Parkinson's disease.But there are several types of medicines that can control the symptoms and make the disease easier to live with.You may not even need treatment if your symptoms are mild.Your doctor may wait to prescribe medicines until your symptoms start to get in the way of your daily life.Your doctor will adjust your medicines as your symptoms get worse.You may need to take several medicines to get the best results.Paragraph 1__________A:Means of Diagnosis of the DiseaseB:Tips for Patients With the DiseaseC:Common Treatment for the DiseaseD:Definition of Parkinson's DiseaseE:Possible Causes of the DiseaseF: Typical Symptoms of the Disease
Nerve signals may travel through nerve or muscle fibers at speeds as high as two hundred miles per hour.A:velocities B:impulsesC:ratios D:atrocities
共用题干A Minor Microsurgery Last year,Sean Martinovich,from Whitianga,had life-saving surgery when a golf-sized tumor was removed from his brain stem.But the operation left half his face paralysed.He talked with a slur,sometimes dribbled（流 口水）out of the side of his mouth and could not close his eye properly.Although he could run around with the other boys in the playground,when they laughed he could not laugh with them.Without a smile,he could suffer psychologically and emotionally. Last week,6-year-old Sean had seven hours of microsurgery that should give him back his smile.Doctor Bartlett removed a nerve from the back of one of Sean's legs and transplanted it into his face.On the normal side of his face the nerve divides into lots of little branches."We'll cut those nerve branches and then we'll take a nerve graft from one leg and tunnel it across his face from one side to the other and join that on to the nerve that' s been cut on the good side of his face."Doctor Bartlett said before the operation."If this was not fixed he conld face physical and emotional problems as he got older,"Doctor Bartlett said."Socially people can become quite withdrawn because of the face paralysis.It's easy for people,especially children,to become rather emotionless because they prefer the flatness of no movement on either side to the weirdness of an asymmetry of smiling on one side and having this twisted face." Sean is not smiling yet.Over the next six months the nerves will grow across the face to the damaged side and after that movement will hopefully come back.Sean's parents,Steve and Wendy Martinovich,said they had been through a year of hell.But their son was a determined boy who just got on with it,said Mrs Martinovich.They are amazed at the technology that they hope will restore the cheeky smile they love so much.For Doctor Bartlett the microsurgery is almost routine.For Sean's parents,it is a miracle.Doctor Bartlett transplanted a nerve into Sean Martinovich's face which was removed from his______.A:leg B:backC:the normal side of his face D:brain
The brain’s neurological specialization for language is called linguistic I （）， which is specific to human beings.
Lying under the skull, the human brain contains an average of the ten billion nerve cells called（）.AneuronsBnerve systemCnervesDcerebral cortex
下列哪些不属于颈浅丛属支（ ）A、lesser occipital nerveB、great auricular nerveC、transverse nerve of nerveD、supraclavicular nerveE、trochlear nerve
Under which of the following circumstances must a JFS filesystem be used instead of a JFS2 filesystem（）A、filesystem will contain 100GB filesB、filesystem resides on a 32-bit systemC、filesystem contains a large number of small filesD、filesystem compression is required
单选题Lying under the skull, the human brain contains an average of the ten billion nerve cells called（）.AneuronsBnerve systemCnervesDcerebral cortex
单选题The evidence of electrical activity and other changes in brain cells after the outside stimulus has been got by observing.Aexposed cat brainsBthe human brainsCcat brains and the human brainsDexposed cat brains and the human brains
单选题According to the passage, which of the following statements is true?AThe imaging techniques not only measure nerve-cell activity but also the extra flow of blood that surges to the most active brain areas.BThe imaging techniques do not measure nerve-cell activity directly, but measure the flow of blood that surges to the most active brain areas.CThe imaging techniques measure the extra flow of blood that surges to the most active brain areas.DThe imaging techniques measure all the activities of the living brain.
填空题The brain’s neurological specialization for language is called linguistic I （）， which is specific to human beings.
名词解释题神经环（nerve ring）