Exam 13: The Respiratory System

Deep breaths usually result in the greatest alveolar ventilation rates.

Which condition exists at high altitudes?

Red blood cells in the pulmonary vein would contain a higher concentration of chloride ions than red blood cells in the pulmonary artery.

Systemic venous $\mathrm { P } _ { \mathrm { O } _ { 2 } }$ is ____ alveolar $\mathrm { P } _ { \mathrm { O } _ { 2 } }$ , and systemic venous $\mathrm { P } _ { \mathrm { CO } _ { 2 } }$ Is ____ alveolar $\mathrm { P } _ { \mathrm { CO } _ { 2 } }$ .

During forceful expiration,

In the absence of pulmonary surfactant, smaller alveoli display a larger inward-directed pressure than do larger alveoli.

Indicate which type of hypoxia would be present in each of the circumstances listed below by writing the appropriate letter in the blank using the following answer code. a.anemic hypoxia b.circulatory hypoxia c.histotoxic hypoxia d.hypoxic hypoxia -Emphysema

Use this figure to answer the corresponding questions. -The structure labeled 3 is the right ________.

For inspiration to occur, the intra-alveolar pressure must be lower than the atmospheric pressure.

____________________ is the transient cessation of breathing.

Choose the structure that likely contains red blood cells with the most carbaminohemoglobin.

Indicate the effect the following changes would have on the rate of gas transfer using the following answer code. a.Increases the rate of gas transfer b.Decreases the rate of gas transfer c.Has no effect on the rate of gas transfer -Effect of reduced systemic venous $\mathrm { P } _ { \mathrm { O } _ { 2 } }$ on O₂ exchange within the lungs

Indicate which type of hypoxia would be present in each of the circumstances listed below by writing the appropriate letter in the blank using the following answer code. a.anemic hypoxia b.circulatory hypoxia c.histotoxic hypoxia d.hypoxic hypoxia -Hemoglobin deficiency

Elastic recoil refers to the tendency of the chest wall to expand.

During hyperventilation, arterial $\mathrm { P } _ { \mathrm { CO } _ { 2 } }$ levels decrease because CO? is blown off more rapidly than it is being produced in the tissues.

Indicate which lung volume or capacity is being described in the column below by filling in the appropriate letter in the blank. a.vital capacity b.respiratory rate c.FEV1 d.tidal volume e.residual volume f.total lung capacity g.functional residual capacity h.alveolar ventilation i.pulmonary ventilation j.inspiratory reserve volume k.expiratory reserve volume l.inspiratory capacity m.anatomic dead space volume -The minimum volume of air remaining in the lungs after maximal expiration

Use this figure to answer the corresponding questions. -Number ____ identifies the vessel containing the highest $\mathrm { P } _ { \mathrm { CO } _ { 2 } }$ , and it is called the ____________________.

Indicate which lung volume or capacity is being described in the column below by filling in the appropriate letter in the blank. a.vital capacity b.respiratory rate c.FEV1 d.tidal volume e.residual volume f.total lung capacity g.functional residual capacity h.alveolar ventilation i.pulmonary ventilation j.inspiratory reserve volume k.expiratory reserve volume l.inspiratory capacity m.anatomic dead space volume -The volume of air entering or leaving the lungs in a single breath during quiet breathing

Pulmonary ventilation is another name for the mechanical act of ____________________.

The most important factor that determines the extent to which hemoglobin is saturated with oxygen is the blood $\mathrm { P } _ { \mathrm { O } _ { 2 } }$ .