题目内容

Decreased elasticity of the aorta can make []

A. Both systolic and diastolic blood pressure increase
Both systolic and diastolic blood pressure decrease
C. Increase in systolic and decrease in diastolic pressure
D. Only increase in systolic and no effect on diastolic pressure
E. Only increase in diastolic and no effect on systolic pressure

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The average filling pressure of the circulatory system depends on []

A. The average arterial pressure
B. circulating blood volume
C. The degree of vasomotion of blood vessels
D. The ratio of blood volume to blood vessel volume
E. The size of blood volume velocity

Keep the functional state of the body relatively stable, depending on the internal []

A. Non-automatic control system
B. negative feedback control system
C. positive feedback control system
D. feedforward control system
E. Autonomic nervous system

The internal environment of the body refers to []

A. Body fluid
B. Intracellular fluid
C. Extracellular fluid
D. Blood
E. Tissue fluid

When animals see food, they cause saliva secretion, which belongs to []

A. Unconditional reflection
B. Non-automatic control
C. Positive feedback control
D. Negative feedback control
E. Feedforward control

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