The most sensitive factor for antidiuretic hormone secretion is ()
A. Decreased circulating blood volume
B. Increased plasma crystal osmotic pressure
C. Increased plasma colloid osmotic pressure
D. Pain stimulation
E. Cold stimulation
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The primary center of micturition reflex is located in ()
A. cerebral cortex
B. hypothalamus
C. medulla oblongata
D. midbrain
E. sacral spine
The main part of concentrated urine is in ()
A. proximal tubule
B. distal tubule
C. loop of Henle
D. collecting duct
E. glomerulus
The normal final urine volume accounts for ( ) about the original urine volume ()
A. 1%
B. 10%
C. 20%
D. 30%
E. 65%
The respiration is ()
A. the summation of expiration and inspiration
B. the process that gas comes in and out of lung
C. the gas exchange between pulmonary alveoli and blood
D. the gas exchange between body and the external environment
E. the process that gas comes in and out histiocytes
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