General Respiratory Anatomy and Physiology Quiz 2

TRUE or FALSE

1. Basic gas-exchange unit of the respiratory system is the bronchioles.
2. The trapezius and pectoralis stabilize shoulders.
3. In the Main stream bronchi, the left is more vertical.
4. In gas exchange area the blood takes O2, gives off CO2.
5. Alveolar stretch receptors respond to inspiration by sending signals to inhibit inspiratory neurons in the brain stem to prevent lung over distention.
6. Oxygen and carbon dioxide are exchanged across the alveolar capillary membrane by process of diffusion.
7. Neural control of respirations is located in the cerebellum.
8. The respiratory center in the medulla is stimulated by the concentration of oxygen in the blood.
9. Chemoreceptors, a secondary feedback system, located in the brachial arteries and aortic arch respond to hypoxemia.
10. The respiratory system is comprised of the upper airway and lower airway structures.

ANSWERS