BIO202 RESPIRATORY Flashcards
as volume increases, pressure
decreases
process that causes air to enter the lungs
inspiration
process that causes air to leave the lungs
expiration
one sequence of inspiration and expiration
respiratory cycle
the term used for various volumes of air moved by or associated with the lungs at a given point in the respiratory cycle.
respiratory volume
the amount of air that normally enters the lungs during quiet breathing, which is about 500 milliliters.
tidal volume
the amount of air you can forcefully exhale past a normal tidal expiration,
expiratory reserve volume
produced by a deep inhalation, past a tidal inspiration. the extra volume that can be brought into the lungs during a forced inspiration.
inspiratory reserve volume
the air left in the lungs if you exhale as much air as possible.
residual volume
the sum of all of the lung volumes (TV, ERV, IRV, and RV), which represents the total amount of air a person can hold in the lungs after a forceful inhalation.
total lung capacity
is the amount of air a person can move into or out of their lungs, and is the sum of all of the volumes except residual volume (TV, ERV, and IRV), which is between 4000 and 5000 milliliters.
vital capacity
the maximum amount of air that can be inhaled past a normal tidal expiration, is the sum of the tidal volume and inspiratory reserve volume.
inspiratory capacity
the amount of air that remains in the lung after a normal tidal expiration; it is the sum of expiratory reserve volume and residual volume
functional residual capacity
the total number of breaths, or respiratory cycles, that occur each minute.
respiratory rate
the movement of air into and out of the lungs, and perfusion is the flow of blood in the pulmonary capillaries.
pulmonary ventilation
