What is a convenient and effective system of examining the body of an injury victim?A.Check the corresponding (left versus right) parts of the body.B.Watch the patient's eyes as you probe parts of the body.C.Look for discoloration of the patient's skin.D.Look for uncontrolled vibration or twitching of parts of the body.
What is a convenient and effective system of examining the body of an injury victim?
A.Check the corresponding (left versus right) parts of the body.
B.Watch the patient's eyes as you probe parts of the body.
C.Look for discoloration of the patient's skin.
D.Look for uncontrolled vibration or twitching of parts of the body.
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共用题干第一篇Immune FunctionsThe immune system is equal in complexity to the combined intricacies of the brain and nervous system. The success of the immune system in defending the body relies on a dynamic regulatory communication net- work consisting of millions and millions of cells.Organized into sets and subsets,these cells pass information back and forth like clouds of bees flying around a hive（蜂巢）.The result is a sensitive system of checks and balances that produces an immune response that is prompt,appropriate,effective,and self-limiting.At the heart of the immune system is the ability to distinguish between self and nonself. When immune defenders encounter cells or organisms carrying foreign or nonself molecules,the immune troops move quicklyto eliminate the intruders（人侵者）.Virtually every body cell carries distinctive molecules that identify it as self. The body's immune defenses do not normally attack tissues that carry a self-marker. Rather,immune cells and other body cells coexist peaceably in a state known as self-tolerance.When a normally functioning immune system attacks a nonself molecule,the system has the ability to"remember"the specifics of the foreign body.Upon subsequent encounters with the same species of molecules,the immune system reacts accordingly. With the possible exception of antibodies（抗体）passed during lactation（授乳期）, this so called immune system memory is not inherited.Despite the occurrence of a virus in your family,your immune system must"learn"from experience with the many millions of distinctive nonseif molecules in the sea of microbes（微生物）in which we live. Learning entails producing the appropriate molecules and cells to match up with and counteract each nonseif invader.Any substance capable of triggering an immune response is called an antigen（抗原）.Antigens are not to be confused with illergens（过敏原）,which are most often harmless substances that provoke the immune system to set off the inappropriate and harmful response known as allergy.An antigen can be a virus,a bacte-rium,or even a portion or product of one of these organisms.Tissues or cells from another individual also act as antigens,because the immune system recognizes transplanted tissues as foreign,it rejects them.The body will even reject nourishing proteins unless they are first broken down by the digestive system into their primary,nonantigenic building blocks.An antigen announces its foreignness by means of intricate and charac- teristic shapes called epitopes（抗原表位）, which protrude（突出）from its surface. Most antigens , even the simplest microbes,carry several different kinds of epitopes on their surface;some may even carry several hundreds.Some epitopes will be more effective than others at stimulating an immune response.Only in abnormal situations does the immune system wrongly identify self as nonself and execute a misdirected immune attack.What is used to describe the communication network consisting of cells in the immune system?A:The immune system's memory.B:Immune troops sliminating intruders.C:Bees flying around a hive.D:A sea of microbes.
共用题干第一篇Immune FunctionsThe immune system is equal in complexity to the combined intricacies of the brain and nervous system. The success of the immune system in defending the body relies on a dynamic regulatory communication net- work consisting of millions and millions of cells.Organized into sets and subsets,these cells pass information back and forth like clouds of bees flying around a hive（蜂巢）.The result is a sensitive system of checks and balances that produces an immune response that is prompt,appropriate,effective,and self-limiting.At the heart of the immune system is the ability to distinguish between self and nonself. When immune defenders encounter cells or organisms carrying foreign or nonself molecules,the immune troops move quicklyto eliminate the intruders（人侵者）.Virtually every body cell carries distinctive molecules that identify it as self. The body's immune defenses do not normally attack tissues that carry a self-marker. Rather,immune cells and other body cells coexist peaceably in a state known as self-tolerance.When a normally functioning immune system attacks a nonself molecule,the system has the ability to"remember"the specifics of the foreign body.Upon subsequent encounters with the same species of molecules,the immune system reacts accordingly. With the possible exception of antibodies（抗体）passed during lactation（授乳期）, this so called immune system memory is not inherited.Despite the occurrence of a virus in your family,your immune system must"learn"from experience with the many millions of distinctive nonseif molecules in the sea of microbes（微生物）in which we live. Learning entails producing the appropriate molecules and cells to match up with and counteract each nonseif invader.Any substance capable of triggering an immune response is called an antigen（抗原）.Antigens are not to be confused with illergens（过敏原）,which are most often harmless substances that provoke the immune system to set off the inappropriate and harmful response known as allergy.An antigen can be a virus,a bacte-rium,or even a portion or product of one of these organisms.Tissues or cells from another individual also act as antigens,because the immune system recognizes transplanted tissues as foreign,it rejects them.The body will even reject nourishing proteins unless they are first broken down by the digestive system into their primary,nonantigenic building blocks.An antigen announces its foreignness by means of intricate and charac- teristic shapes called epitopes（抗原表位）, which protrude（突出）from its surface. Most antigens , even the simplest microbes,carry several different kinds of epitopes on their surface;some may even carry several hundreds.Some epitopes will be more effective than others at stimulating an immune response.Only in abnormal situations does the immune system wrongly identify self as nonself and execute a misdirected immune attack.The immune cells and other cells in the body coexist peaceably in a state known as________.A:self-toleranceB:balanceC:harmonyD:tolerance
共用题干第一篇Immune FunctionsThe immune system is equal in complexity to the combined intricacies of the brain and nervous system. The success of the immune system in defending the body relies on a dynamic regulatory communication net- work consisting of millions and millions of cells.Organized into sets and subsets,these cells pass information back and forth like clouds of bees flying around a hive（蜂巢）.The result is a sensitive system of checks and balances that produces an immune response that is prompt,appropriate,effective,and self-limiting.At the heart of the immune system is the ability to distinguish between self and nonself. When immune defenders encounter cells or organisms carrying foreign or nonself molecules,the immune troops move quicklyto eliminate the intruders（人侵者）.Virtually every body cell carries distinctive molecules that identify it as self. The body's immune defenses do not normally attack tissues that carry a self-marker. Rather,immune cells and other body cells coexist peaceably in a state known as self-tolerance.When a normally functioning immune system attacks a nonself molecule,the system has the ability to"remember"the specifics of the foreign body.Upon subsequent encounters with the same species of molecules,the immune system reacts accordingly. With the possible exception of antibodies（抗体）passed during lactation（授乳期）, this so called immune system memory is not inherited.Despite the occurrence of a virus in your family,your immune system must"learn"from experience with the many millions of distinctive nonseif molecules in the sea of microbes（微生物）in which we live. Learning entails producing the appropriate molecules and cells to match up with and counteract each nonseif invader.Any substance capable of triggering an immune response is called an antigen（抗原）.Antigens are not to be confused with illergens（过敏原）,which are most often harmless substances that provoke the immune system to set off the inappropriate and harmful response known as allergy.An antigen can be a virus,a bacte-rium,or even a portion or product of one of these organisms.Tissues or cells from another individual also act as antigens,because the immune system recognizes transplanted tissues as foreign,it rejects them.The body will even reject nourishing proteins unless they are first broken down by the digestive system into their primary,nonantigenic building blocks.An antigen announces its foreignness by means of intricate and charac- teristic shapes called epitopes（抗原表位）, which protrude（突出）from its surface. Most antigens , even the simplest microbes,carry several different kinds of epitopes on their surface;some may even carry several hundreds.Some epitopes will be more effective than others at stimulating an immune response.Only in abnormal situations does the immune system wrongly identify self as nonself and execute a misdirected immune attack.Which of the following best expresses the main idea of this passage?A:An antigen is any substance that triggers an immune response.B:One of the immune system's primary functions is the allergic response.C:The human body is an appropriate habitat for microbes.D:The basic function of the immune system is to distinguish between self and nonseif.
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单选题A victim has suffered a second-degree burn to a small area of the lower arm. What is the proper treatment for this injury?（）AImmerse the arm in cold water for 1 to 2 hours，apply burn ointment，and bandageBOpen any blisters with a sterile needle，apply burn ointment and bandageCApply burn ointment，remove any foreign material and insure that nothing is in contact with the burnDImmerse the arm in cold water for 1 to 2 hours，open any blister and apply burn ointment
单选题A person being treated for shock should be wrapped in warm coverings to（）.Aincrease body heatBpreserve body heatCavoid self-inflicted wounds caused by spastic movementDprotect the person from injury during transportation
单选题What can be determined about an injury from examining the condition of a victim’s pupils? （）AThe degree of pain being sufferedBThe degree of vision impairmentCWhether or not the brain is functioning properlyDWhether or not the victim's blood pressure is normal
单选题An effective braking system for windlasses on rigs in deep water is a(n)（）.Alarger chain stopperBdisc backstopping brakeChydraulic clutchDelectrical regenerative braking system
单选题A conscious victim who has suffered a blow to the head has symptoms that indicate the possibility of concussion. If the patient feels no indication of neck or spine injury，recommended treatment would include（）.Aturning the victim's head to the side to keep his airway openBpositioning the victim so the head is lower than the bodyCgiving the victim water if he is thirsty，but no foodDelevating the head and shoulders slightly with a pillow
单选题The responsibility of the police force of Public Transit is to _____.Aenhance public securityBbuild a free transit systemCcontrol the number of ridersDensure a convenient transit system
单选题What requires a Report of Marine Accident，Injury or Death?（）ACollision with a bridgeBInjury beyond first aidCloss of lifeDAll of the above
单选题What is a convenient and effective system of examining the body of an injury victim?（）ACheck the corresponding (left versus right) parts of the bodyBWatch the patient's eyes as you probe parts of the bodyCLook for discoloration of the patient's skinDLook for uncontrolled vibration or twitching of parts of the body
单选题What is a treatment for traumatic shock?（）AAdminister CPRBAdminister fluidsCOpen clothing to allow cooling of the bodyDKeep the victim in a sitting position
单选题A conscious victim who has suffered a blow to the head has symptoms that indicate the possibility of concussion. If the patient feels no indication of neck or spine injury，recommended treatment would include（）.Aturning the victims's head to the side to keep his airway openBpositioning the victim so the head is lower than the bodyCgiving the victim water if he is thirsty，but no foodDelevating the head and shoulders slightly with a pillow