When blood pH becomes too acidic, the tubule cells of the kidneys excrete bicarbonate ions and retain hydrogen ions
Indicate whether the statement is true or false
FALSE
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When the level of blood flow is not ideally matched with the amount of airflow in a localized area of lung tissue
a. autoregulatory mechanisms are invoked. b. the autonomic nervous system couples the events more ideally. c. if airflow is low and blood flow to high, arteriolar vasoconstriction occurs. d. both (a) and (b) above. e. both (a) and (c) above.
The patella is which type of bone?
A) short B) sesamoid C) irregular D) None of the listed responses is correct.
A body fluid has been collected and IgA antibodies have been detected. Which of the following statements is correct in regard to the fluid?
A. The body fluid is most likely blood because IgA antibodies are only found in blood. B. The body fluid is most likely lymph that contain B lymphocytes because IgA antibodies are most often attached to B lymphocytes. C. The body fluid is most likely saliva due to the presence of IgA antibodies.
Mixed nerves contain
A. fibers from two different senses. B. both sensory and motor fibers. C. both excitatory and inhibitory fibers. D. fibers controlling voluntary and involuntary actions.