The formation of brain waves is mainly due to( ) in the surface of the cortex []
A single neuron apical dendrite simultaneously generates the sum of multiple post-synaptic potentials.
B. Action potential generated by the excitability of a single neuron cell body.
C. The sum of the post-synaptic potentials of a large number of neuronal apical dendrites.
D. A large number of nerves. The sum of the action potentials produced by the synchronous excitation of the cell body
E. The sum of the action potentials produced by the simultaneous excitation of a large number of neuron axons
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The brain waves of normal adults working during the day are []
A. α wave
B. α wave block
C. β wave
D. δ wave
E. θ wave
How does the rabbit's breathing change after cutting off the bilateral cervical vagus nerves? []
A. The frequency increases and the amplitude decreases
B. The frequency increases and the amplitude increase
C. The frequency and amplitude remain unchanged
D. The frequency decreases and the amplitude decrease
E. The frequency decreases and the amplitude increase
The primary force of pulmonary ventilation is []
A. Expansion and contraction of the lungs
B. Expansion and contraction of the thorax
C. respiratory movement
Difference between intrathoracic pressure and atmospheric pressure
E. Pressure difference between the inside and outside of the trachea
What is not happened during eupnea? []
A. Contraction of the external intercostal muscles during inspiration
B. Contraction of the diaphragm muscles during inspiration
Contraction of the internal intercostal muscles during expiration
D. Natural return of the thorax during expiration
E. The effect of the external intercostal muscles is less than that of the diaphragm
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