Exam 46: Gas Exchange

Figure 46-4 Use the figure to answer the corresponding question(s). Oxygen-hemoglobin dissociation curves at three different pH levels -The phenomenon illustrated in Figure 46-4 is known as:

MATCHING Match the part of the human respiratory system with its decription. a.alveoli e.nasal cavity b.bronchiole f.pharynx c.bronchus g.trachea d.larynx -After leaving the pharynx, inhaled air passes next into this structure.

MATCHING Match the part of the human respiratory system with its decription. a.alveoli e.nasal cavity b.bronchiole f.pharynx c.bronchus g.trachea d.larynx -During swallowing, the epiglottis closes off the top of this structure.

During inhalation, air moves from the pharynx directly into the trachea. ____________________

Describe the harmful effects of cigarette smoking on the respiratory system.

If an individual had a fractured larynx:

As part of the diving reflex of seals, the heart rate increases. ____________________

The pleural cavity is located:

Mitochondria use inspired oxygen as an electron acceptor in the process known as:

All of the following are adaptations of diving marine mammals for extended submersion times except:

_____ have the most efficient respiratory system of any living vertebrate.

Molecular oxygen attaches to the iron atoms in a hemoglobin molecule. ____________________

Figure 46-3 Use the figure to answer the corresponding question(s). -Fick's law states that:

Dalton's law of partial pressures states that the total pressure of a mixture of gases is equal to the sum of the pressures of the individual gases. ____________________

Decompression sickness is caused by:

Dalton's Law states that:

Tracheal tubes and spiracles are characteristically found in annelids. ____________________

Pulmonary surfactant does all of the following except:

Figure 46-1 Use the figure to answer the corresponding question(s). -Refer to Figure 46-1.The structures receiving air in figure 1 are known as:

At higher altitudes: