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【单选题】

The structure of nonchemical information transmission is( )

A.
the scrotum
B.
Effects of hormones on target organs
C.
Classical synapse
D.
Gap connection
E.
Nerve-muscle joint
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【单选题】Stimulation of the vagus nerve may cause( )

A.
Enhanced gastrointestinal movement and increased secretion of digestive juices
B.
It mainly causes enhancement of gastrointestinal motility
C.
Decreased gastrointestinal movement and secretion of digestive juices
D.
Weakened gastrointestinal movement and increased secretion of digestive juices
E.
Increased gastrointestinal movement and decreased secretion of digestive juices

【单选题】The final stage of the blood coagulation process is( )

A.
FⅫ is activated
B.
The formation of fibrin
C.
Tissue releases FIII
D.
The formation of thrombin
E.
Formation of prothrombin activator

【单选题】Which of the following could potentially result in more low V/Q regions within the lung?( )

A.
Obstruction of both pulmonary arteries
B.
None of the above
C.
Doubling the ventilation to the right cranial lobe while its blood flow remains the same
D.
Vasoconstriction of the pulmonary arteries of the left lung in a cow
E.
Atelectasis of one lobe of a dog lung

【单选题】Under normal conditions, renal blood flow remains relative stable by( )

A.
Humoral regulation
B.
Feedback regulation
C.
Reflex
D.
Self-regulation
E.
Neuromodulation

【单选题】The factors affecting both excitability and conductivity of myocardium are( )

A.
0 depolarization rate
B.
Duration of phase 2
C.
Resting potential level
D.
0 depolarization amplitude
E.
Rate of repolarization in phase 1

【单选题】Factors that increase glomerular filtration rate are( )

A.
Decreased glomerular capillary blood pressure
B.
Elevated arterial blood pressure throughout the body
C.
decreased osmotic pressure of plasma crystal
D.
Decreased plasma colloid osmotic pressure
E.
Increased hydrostatic pressure in renal vesicle

【单选题】When nerve cells are excited, neurotransmitters are released from( )

A.
Axon
B.
Initial segment of axon
C.
Axon terminal
D.
Dendritic
E.
Cell body

【单选题】The maintenance of body homeostasis mainly depends on( )

A.
Conditioned reflex
B.
Feedforward regulation
C.
Negative feedback regulation
D.
Positive feedback adjustment
E.
Short feedback regulation