Human Bio FINAL Chapter 10

During the ingestion of food or liquid, which one of the following tips to block the opening to the trachea?

Epiglottis

How does external respiration differ from internal respiration?

External respiration refers to gas exchange between inhaled air and blood, whereas internal respiration refers to gas exchange between the blood and tissue fluids.

Ventilation refers to the process by which

air moves into and out of the lungs

The amount of air that can be forced out of the lungs beyond the tidal volume

expiratory reserve volume

During exhalation, the pressure inside the lungs

initially is higher than atmospheric pressure, but drops as air leaves the body

the amount of air that can be inhaled beyond the tidal volume

inspiratory reserve volume

Carbaminohemoglobin differs from hemoglobin in that carbaminohmoglobin

is bound to carbon dioxide

When air entering the respiratory tract leaves the pharynx, it next enters the

larynx

During the inspiration, intercostal muscles function to

pull the rib cage up and out, so that lung volume increases

the air that remains in the lungs after a forceful exhalation

residual volume

The amount of air entering the lungs with every breath

tidal volume

the maximum amount of air that can be exhaled after a maximal inhalation

vital capacity

Which of the following occurs as air is drawn through the nose?

Air is warmed, filtered, and humidified

Which of the following structures is the location of gas exchange between the inhaled air and the blood?

Alveoli

The rate and depth of normal breathing are determined by

Carbon dioxide levels in the blood