葛竣谐飞倡固侧夯会琅牟恐挥
绪论 单元测试
1、
The regulation mode and characteristic of three physiological functions in human body？
A:Nervous regulation: rapid, accurate (reflex arc).
B:Humoral or neuro-humoral regulation: slow, extensive (secretion).
C:Self regulation: small, limited.
D:All of the above three.
答案: All of the above three.
第一章 单元测试
1、
The AV node, which normally exhibits the fastest rate of autorhythmicity is known as the pacemaker of the heart.
A:对
B:错
答案: 错
2、
Bulk flow occurs because of differences in the hydrostatic and colloid osmotic pressures between the plasma and interstitial fluid.
A:对
B:错
答案: 对
3、
Which of the following correctly ranks pressures during isovolumetric contraction of a normal cardiac cycle?
A: left ventricular > aortic > left atrial
B: aortic > left atrial > left ventricular
C: left atrial > aortic > left ventricular
D:aortic > left ventricular > left atrial
E:left ventricular > left atrial > aortic
答案: aortic > left ventricular > left atrial
4、
When the radius of the resistance vessels is increased, which of the following is increased?
A:Systolic blood pressure
B:Diastolic blood pressure
C:Viscosity of the blood
D: Hematocrit
E: Capillary blood flow
答案: Capillary blood flow
5、
What is mainly responsible for the delay between the atrial and ventricular contractions?
A: the shallow slope of AV node pacemaker potentials
B:slow action potential conduction velocity of AV node cells
C:slow action potential conduction velocity along atrial muscle cell membranes
D:slow action potential conduction in the Purkinje network of the ventricles
E:greater parasympathetic nerve firing to the ventricles than to the atria
答案: slow action potential conduction velocity of AV node cells
第二章 单元测试
1、
Cholesterol is found within the lipid bilayer
A:对
B:错
答案: 对
2、
The greater the difference in concentration, the slower the rate of net diffusion.
A:对
B:错
答案: 错
3、
Opposite charges attract each other.
A:对
B:错
答案: 对
4、
Cholesterol contributes to the fluidity and stability of the membrance, Between which molecules is cholesterol found?
A:membrane proteins
B:membrane carbohydrates
C:cell adhesions molecules
D:phospholipids.
答案: phospholipids.
5、
Membrane potential is measured in these units
A:volts
B:nanovolts
C:Kilovolts
D:millivolts
答案: millivolts
第三章 单元测试
1、
These filaments are arranged in cylindrical bundles called myofibrils.
A:对
B:错
答案: 对
2、
T tubules store calcium.
A:对
B:错
答案: 错
3、
In skeletal muscle, magnesium must be attached to ATP before myosin ATPase can split the ATP
A:对
B:错
答案: 对
4、
Which of the following is the functional unit of a skeletal muscle?
A:Glogi organ
B:thick filaments
C:sarcomere
D:sliding filaments
答案: sarcomere
5、
Which of the following ions binds to calmodulin in smooth muscles?
A:magnesium
B:calcium
C:potassium
D:sodium e all of the above
答案: calcium
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