Which of the following events of respiration involves the flow of air out of the lungs?
A) internal respiration
B) inspiration
C) external respiration
D) expiration
E) cellular respiration
D
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Indicate whether the statement is true or false
Which is most likely a result of hypersecretion of growth hormone?
A. Dwarfism B. Increased secretion of growth hormone-releasing hormone (GHRH) C. Decreased plasma concentration of IGF-I D. Decreased secretion of somatostatin E. Acromegaly
One of the major problems a premature infant may develop is respiratory distress syndrome. This occurs because in a premature infant,
A. there aren't enough red blood cells to carry oxygen. B. oxygen transport is impaired. C. the lungs are collapsed. D. surfactant isn't produced. E. there is mixing of the arterial and venous blood.
Which statement about fluids and electrolyte balance is true?
A. Where salt goes, water will follow. B. The concentration of urine is determined by the amount of water in it. C. The principal electrolyte in the body is potassium. D. The volume of urine is determined by the amount of sodium in it.