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

Anatomy & Physiology

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Negative feedback is bad for the body because it increases a change away from normal.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

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.

Anatomy & Physiology

The ________ nerve carries impulses to the diaphragm.

A. phrenic B. vagus C. diaphragmatic D. thoracic

Anatomy & Physiology

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.

Anatomy & Physiology