More tension is developed during twitch summation than during a single twitch because the duration of elevated cytosolic Ca2+ concentration increases during summation, thus increasing the availability of cross-bridge binding sites
Indicate whether the statement is true or false
T
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The ________ nerve carries impulses to the diaphragm.
A. phrenic B. vagus C. diaphragmatic D. thoracic
Negative feedback is bad for the body because it increases a change away from normal.
Answer the following statement true (T) or false (F)
During the depolarization phase of an action potential, which of the following situations exists?
A) The membrane is becoming less permeable to all ions. B) The inside of the membrane is becoming more negative with respect to the outside. C) The membrane potential remains constant. D) The inside of the membrane is becoming more positive with respect to the outside.
Total-body balance of water and Na+ is largely maintained by regulating urinary loss of these substances
Indicate whether the statement is true or false.