Which of the following statements is false or incorrect?
A) Cardiac muscle contracts when stimulated by its own autorhythmic muscle cells.
B) Under normal resting conditions, cardiac muscle tissue contracts and relaxes about 75 times per minute.
C) Cardiac muscle fibers depend mostly on anaerobic cellular respiration to generate ATP.
D) Cardiac muscle fibers can use lactic acid to make ATP.
C) Cardiac muscle fibers depend mostly on anaerobic cellular respiration to generate ATP.
You might also like to view...
You have decided to ascend to the summit of Mount Everest where the partial pressure of oxygen in the atmosphere has been estimated to be about 54 mmHg. Once you breathe in this air, the partial pressure of oxygen in the alveoli drops even lower, due to displacement by the partial pressure of carbon dioxide and water vapor. The arterial concentration of oxygen at the pulmonary capillaries is measured and found to be 25 mmHg. What is the percent saturation of hemoglobin at this partial pressure?
A. 98% B. 83% C. 18 % D. 45%
The ossicles belong to the middle ear.
Answer the following statement true (T) or false (F)
Summarize the processes occurring during the postabsorptive state
What will be an ideal response?
Phototransduction is the process in which
A. photoreceptors convert light energy to changes in membrane potential. B. retinal ganglion cells signal changes in the color of light. C. primary visual cortex recognizes and identifies a stimulus. D. bipolar cells signal the presence of contrast in a visual scene.