Which of the following descriptions best fits the acid-base disorder respiratory alkalosis?
A) consequence of hyperventilation (for example, in fever or mental illness)
B) consequence of prolonged vomiting
C) consequence of reduced alveolar ventilation (for example, due to COPD)
D) consequence of tissue hypoxia (for example, in ischemic conditions)
E) consequence of strenuous exercise
Question 2
Which of the following statements is true regarding cardiac muscle?
A) Its main source of ATP production is glycogen.
B) The actin and myosin myofilaments are not arranged in sarcomeres.
C) Cardiac muscle preferentially metabolizes anaerobically.
D) There are specialized gap junctions in cardiac muscle not found in skeletal or smooth muscles.
E) Cardiac muscle goes into sustained contractions faster than skeletal muscle.