机体体循环静脉压增高的最常见原因是( )
A. 血栓阻塞静脉腔
B. 肿瘤转移到静脉
C. 瘢痕压迫静脉壁
D. 右心衰竭
E. 左心衰竭
端坐呼吸发病机制中下列哪项属于不可能?
A. 平卧时回心血量增多
B. 平卧时心脏指数增加
C. 平卧时水肿液易于入血
D. 平卧时胸腔容积变小
E. 睡眠中神经反射敏感性降低
Which of the following conditions matches this description - The heart is unable to pump its required amount of blood ( more blood enters the heart from the veins than leaves through the arteries)?
A. Heart attack
B. Acute myocardial infraction
Congestive heart failure
D. Hypertension
E. Coronary artery disease
心功能不全发生过程中无代偿意义的变化是
A. 心率加快
B. 心肌收缩加强
C. 心肌肥大
D. 心脏肌源性扩张
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