Which of the following is a special characteristic of the respiratory membrane structure that facilitates gas diffusion?
A. the merging of the basement membranes of the alveoli and capillary
B. the presence of alveolar pores
C. the presence of surfactant
D. the presence of type I and type II alveolar cells
Ans: A. the merging of the basement membranes of the alveoli and capillary
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Carbon dioxide is more soluble in water than oxygen. To get the same amount of oxygen to dissolve in plasma as carbon dioxide, you would have to
A) decrease the alveolar ventilation rate. B) decrease the temperature of the plasma. C) decrease the partial pressure of nitrogen. D) increase the rate of plasma flow through the lungs. E) increase the partial pressure of oxygen.
Muscles that have a fine degree of control have small motor units
Indicate whether the statement is true or false
Which structure separates the right and left ventricles?
A) Chordae tendineae B) Right ventricle C) Right atrium D) Interventricular septum
Endochondral ossification is a form of bone growth in which a cartilaginous model is replaced by bone.
Answer the following statement true (T) or false (F)