2020 Human Physiology(徐州医科大学) 最新满分章节测试答案

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本课程起止时间为:2020-05-19到2020-07-15
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Unit V Respiration Physiology Respiration Physiology

1、 问题:1. A woman has a respiratory rate of 18, a tidal volume of 350 mL, anda dead space of 100 mL. What is her alveolar ventilation?
选项：
A:4.0 L
B:4.5 L
C: 5.0 L
D: 5.5 L
E:6.0 L
答案: 【4.5 L】

2、 问题:Which one of the following is higher at the apex of the lung than atthe base when a person is standing?
选项：
A: V/Q ratio
B: Blood flow
C:Ventilation
D: PaCO2
E:Lung compliance
答案: 【 V/Q ratio】

3、 问题:Which of the following conditions causes a decrease in arterial O2saturation without a decrease in O2 tension?
选项：
A:Anemia
B: Carbon monoxide poisoning
C:A low V/Q ratio
D:Hypoventilation
E:  Right-to-left shunt 
答案: 【 Carbon monoxide poisoning】

4、 问题:4. Peripheral and central chemoreceptors may contribute to theincreased ventilation that occurs as a result of
选项：
A:A decrease in arterial oxygen content
B:A decrease in arterial blood pressure
C:An increase in arterial carbon dioxide tension
D:A decrease in arterial oxygen tension
E:An decrease in arterial pH
答案: 【An increase in arterial carbon dioxide tension】

5、 问题:The basic respiratory rhythm is generated in the
选项：
A: Apneustic center  
B:Nucleus parabrachialis 
C:Dorsal medulla 
D:Pneumotaxic center  
E:Cerebrum
答案: 【Dorsal medulla 】

6、 问题:The bulk of CO2 is transported in arterial blood as
选项：
A:Dissolved CO2   
B: Carbonic acid    
C: Carbaminohemoglobin    
D:Bicarbonate      
E:Carboxyhemoglobin
答案: 【Bicarbonate      】

7、 问题:An increase in the P50 of an oxyhemoglobin curve would result from a decrease in
选项：
A:Metabolism 
B:pH     
C:Temperature 
D:Oxygen 
E:2,3-DPG
答案: 【pH     】

8、 问题:Pulmonary alveoli are kept dry by factors that include the
选项：
A:Phagocytic activity of alveolar macrophages 
B:Negative interstitial fluid pressure 
C: Low vapor pressure of water in inspired air
D:Secretion of surfactant
E:Tight junctions between the alveolar capillary endothelial cells
答案: 【Secretion of surfactant】

9、 问题:Concerning the control of respiration:
选项：
A:The respiratory muscles have an intrinsic rhythmical activity
B: The basic neural machinery for the generation of the respiratory rhythm is located in the lower medulla.
C: Respiration will stop if all afferent nerves to the lungs are cut.
D:The intercostal muscles are the principal muscles of respiration.
答案: 【 The basic neural machinery for the generation of the respiratory rhythm is located in the lower medulla.】

10、 问题:Concerning the chemical regulation of respiration:
选项：
A:The depth and rate of ventilation is decreased when a subject breathes air containing pure oxygen at normal atmospheric pressure.
B:The central chemoreceptors sense the oxygen tension of the arterial blood.
C:In man, the peripheral chemoreceptors are located in the carotid sinus and aortic arch.
D:The peripheral chemoreceptors are the only receptors able to respond to changes in the partial pressure of oxygen in the arterial blood.
答案: 【The peripheral chemoreceptors are the only receptors able to respond to changes in the partial pressure of oxygen in the arterial blood.】

11、 问题: Complete transection of the brainstem above the pons 
选项：
A:Result in cessation of all breathing movements
B: Prevent any voluntary holding of breath
C:Prevent the central chemoreceptors from exerting any control over ventilation
D:Prevent the peripheral chemoreceptors from exerting any control over ventila-tion
E: Abolish the Hering-Breuer reflex
答案: 【 Prevent any voluntary holding of breath】

12、 问题:A deficiency of pulmonary surfactant would
选项：
A: Decrease surface tension in the alveoli
B:Decrease the change in intrapleural pressure required to achieve a given tidalvolume
C:Decrease lung compliance
D:Decrease the work of breathing
E: Increase functional residual capacity (FRC)
答案: 【Decrease lung compliance】

13、 问题:9. The percentage of hemoglobin saturated with oxygen will increase if
选项：
A:The arterial PCO2 is increased
B:The hemoglobin concentration is increased
C:The temperature is increased
D:The arterial PO2 is increased
E: The arterial pH is decreased
答案: 【The arterial PO2 is increased】

14、 问题: The activity of the central chemoreceptors is stimulated directly by
选项：
A:An increase in the PCO2 of blood flowing through the brain
B:A decrease in the PO2 of blood flowing through the brain
C:A decrease in the oxygen content of blood flowing through the brain
D:A decrease in the metabolic rate of the surrounding brain tissue
E:An increase in the pH of the CSF
答案: 【An increase in the pH of the CSF】

15、 问题:During a normal inspiration, more air goes to the alveoli at the baseof the lung than to the alveoli at the apex of the lung because
选项：
A:The alveoli at the base of the lung have more surfactant
B:The alveoli at the base of the lung are more compliant
C:The alveoli at the base of the lung have higher V/Q ratios
D:There is a more negative intrapleural pressure at the base of the lung
E:There is more blood flow to the base of the lung
答案: 【There is more blood flow to the base of the lung】

Unit I Introduction of Physiology quiz

1、 问题:The fluid environment surrounding each cell is called the    
选项：
A:A. intracellular fluid 
B:B. infracellular fluid        
C:C. internal environment
D:D. external environment                         
答案: 【C. internal environment】

2、 问题:Which of the following solutions, when infused intravenously, would result in an increase in extracellular fluid volume, a decrease in intracellular fluid volume, and an increase in total body water after osmotic equilibrium? 
选项：
A:A. 1 Liter of 0.9% sodium chloride (NaCl. solution
B:B. 1 Liter of 0.45% NaCl solution
C:C. 1 Liter of 3% NaCl solution
D:D. 1 Liter of isotonic dextrose solution 
答案: 【C. 1 Liter of 3% NaCl solution】

3、 问题: The physiological significance of positive feedback is
选项：
A:A. to keep a functional activity relatively constant
B:B. to keep the functional activity going on until its end
C:C. to maintain the blood pressure at a higher level
D:D. to maintain the body temperature constant 
答案: 【B. to keep the functional activity going on until its end】

4、 问题:The rate of diffusion of a particle across a membrane will increase if
选项：
A:A. The area of the membrane decreases     
B:B. The thickness of the membrane increases
C:C. The size of the particle increases        
D:D. The lipid solubility of the particle increases 
答案: 【C. The size of the particle increases        】

5、 问题:      How much of normal body weight is made up of water?   
选项：
A:   A. 10%   
B: B. 35%  
C:C. 60%  
D:D. 90%   
答案: 【C. 60%  】

Unit X Nervous System Physiology Nervous System

1、 问题:During a voluntary movement, the Golgi tendon organ provides the central nervous system with information about
选项：
A:A.           The length of the muscle being moved
B:B.            The velocity of the movement
C:C.            The blood flow to the muscle being moved
D:D.           The tension developed by the muscle being moved
答案: 【D.           The tension developed by the muscle being moved】

2、 问题:Free nerve endings contain receptors that encode the sensation of
选项：
A:A.           Fine touch
B:B.            Vibration
C:C.           Pressure