Which of the following descriptions of classical synapses is correct?()
A. Belongs to non-directional chemical synapses
B. There are no morphological differences in synaptic vesicles containing various transmitters
C. All kinds of transmitters are released in the activation region
D. Activation region is located in the presynaptic membrane corresponding to the postsynaptic membrane receptor
E. All of postsynaptic membrane receptors are chemically gated channels
查看答案
When needed, glial cells that can convert to macrophages are()
A. astrocytes
B. oligodendrocytes
C. microglia
D. Schwann cells
E. satellite cells
Neurotrophic effects()
A. refer to the influence of the nerve on the functional activities of the dominating tissue
B. achieved by releasing the neurotransmitter or neuromodulator through the nerve endings
C. rely on the regular release of neurotrophic factors
D. can be blocked by continuous application of local anesthetics
E. It is not easy to detect, and it can be clearly displayed after cutting off the nerve
Fast anterograde axoplasmic transport mainly transport()
A. organelle with membrane
B. transmitter synthase
C. microfilaments and microtubules
D. neurotrophic factors
E. cell metabolites
Which of the following description is correct about the characteristics of nerve fiber excitation conduction?()
A. only one-way conduction from cell body to terminal
B. without interference among fibers in nerve trunk
C. as long as the structure is intact, normal excitation can be conducted
D. is not affected by the changes of factors in internal environmental
E. When stimulated continuously, the conductive capacity decreases rapidly
微信支付 
支付宝支付