绪论 单元测试

1、单选题:
The regulation mode and characteristic of three physiological functions in human body?
选项:
A:All of the above three.
B:Self regulation: small, limited.
C:Humoral or neuro-humoral regulation: slow, extensive (secretion).
D:Nervous regulation: rapid, accurate (reflex arc).
答案: 【All of the above three.

第一章 单元测试

1、判断题:
The AV node, which normally exhibits the fastest rate of autorhythmicity is known as the pacemaker of the heart.
选项:
A:错
B:对
答案: 【

2、判断题:
Bulk flow occurs because of differences in the hydrostatic and colloid osmotic pressures between the plasma and interstitial fluid.
选项:
A:对
B:错
答案: 【

3、单选题:
Which of the following correctly ranks pressures during isovolumetric contraction of a normal cardiac cycle?
选项:
A:aortic > left atrial > left ventricular
B:aortic > left ventricular > left atrial
C:left ventricular > aortic > left atrial
D:left ventricular > left atrial > aortic
E:left atrial > aortic > left ventricular
答案: 【aortic > left ventricular > left atrial

4、单选题:
When the radius of the resistance vessels is increased, which of the following is increased?
选项:
A:Systolic blood pressure
B:Diastolic blood pressure
C:Capillary blood flow
D:Viscosity of the blood
E:Hematocrit
答案: 【Capillary blood flow

5、单选题:
What is mainly responsible for the delay between the atrial and ventricular contractions?
选项:
A:slow action potential conduction velocity of AV node cells
B:slow action potential conduction velocity along atrial muscle cell membranes
C:greater parasympathetic nerve firing to the ventricles than to the atria
D:the shallow slope of AV node pacemaker potentials
E:slow action potential conduction in the Purkinje network of the ventricles
答案: 【slow action potential conduction velocity of AV node cells

第二章 单元测试

1、判断题:
Cholesterolisfoundwithinthelipid bilayer
选项:
A:对
B:错
答案: 【

2、判断题:
The greater the difference in concentration, the slower the rate of net diffusion.
选项:
A:错
B:对
答案: 【

3、判断题:
Opposite charges attract each other.
选项:
A:对
B:错
答案: 【

4、单选题:
Cholesterol contributes to the fluidity and stability of the membrance, Between which molecules is cholesterol found?
选项:
A:membrane proteins
B:phospholipids.
C:membrane carbohydrates
D:cell adhesions molecules
答案: 【phospholipids.

5、单选题:
Membrane potential is measured in these units
选项:
A:volts
B:nanovolts
C:millivolts
D:Kilovolts
答案: 【millivolts

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