3.1.1: Mammlian Gas Exchange Flashcards
What is the maximum volume of air an individual can inhale and exhale during a deep breath?
Vital capacity (VC)
Vital capacity is a key measurement of lung function.
What is the air inhaled and exhaled when at rest called?
Tidal volume (TV or VT)
Tidal volume represents the normal volume of air exchanged.
What is the definition of residual volume (RV)?
The small volume of air that remains in the lungs after complete exhalation
This volume prevents lung collapse.
How can the breathing rate be calculated?
By counting the number of breaths taken per minute
This involves counting the full peaks and troughs on a spirometer graph.
What is the formula for calculating ventilation rate?
Ventilation rate = tidal volume x breath rate
This formula shows how much air is inhaled per minute.
True or False: The lungs fully remove all air during exhalation.
False
The lungs retain a small volume of air known as residual volume.
What happens to oxygen uptake when ventilation rate increases?
Oxygen uptake will increase
This typically occurs during physical exercise.
What is the term for the number of breaths taken per minute?
Breathing rate
It is a key factor in measuring respiratory function.
What is the relationship between vital capacity and deep breathing?
Vital capacity is measured during deep breathing
It reflects the maximum air volume exchanged in one breath.
Fill in the blank: The volume of air inhaled and exhaled can be measured using a _______.
spirometer
A spirometer records lung volume changes during ventilation.
What is the term for the volume of air that can be inhaled after a normal inhalation?
Inspiratory reserve volume
It represents the additional air that can be drawn into the lungs.
What is functional residual capacity (FRC)?
The volume of air remaining in the lungs after normal expiration
It includes the residual volume and expiratory reserve volume.
