Wallerian degeneration refers to
a) degeneration of the proximal end of axon and myelin sheath after neural injury.
b) degeneration of the distal end of axon and myelin sheath after neural injury.
c) break of Nissl bodies after neural injury.
d) plasticity of neuron.
e) none of these choices
b
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Which of the following statements is correct regarding diffusion?
A) The rate of diffusion is independent of temperature. B) The greater the concentration of gradient, the faster the rate of diffusion. C) Molecular weight of a substance does not affect the rate of diffusion. D) The lower the temperature, the faster the diffusion rate.
The pericardial cavity contains ________, which acts as a lubricant, reducing friction between the opposing surfaces.
Fill in the blank(s) with the appropriate word(s).
When you want to study a slide under the microscope, you place it on the ________.
Fill in the blank(s) with the appropriate word(s).
Describe the three parts necessary for homeostatic regulation
A) The three parts necessary for homeostatic regulation are the receptor, the pathway, and the outcome. B) The three parts necessary for homeostatic regulation are the chemical, the membrane, and the receptor. C) The three parts necessary for homeostatic regulation are the afferent signal, the central signal, and the efferent signal. D) The three parts necessary for homeostatic regulation are the set point, the stimulus, and the result. E) The three parts necessary for homeostatic regulation are the receptor, the control center, and the effector.