Respiratory system Flashcards
(20 cards)
What features are in the ‘conducting zone’ of the respiratory system’
- Nose
- Pharynx
- Larynx
- Trachea
- Bronchus
- Bronchiole
What is respiratory rate (Bf)?
Respiratory rate is the number of breaths taken per minute
What is tidal volume (TV)?
Tidal Volume is the amount of air breathed in or out during normal respiration, per breath.
What is the role of the conducting system?
Forms one continuous passage for air to move into and out of the lungs.
Warms, moistens and helps to filter the air.
What features make the respiratory zone?
Repertory bronchiole, alveolar duct and the alveoli.
What happens at the inspiration phase?
Response; The external intercostal muscles and the diaphragm contract, increasing the volume of the thorax, thereby drawing air into the lungs.
What happens at the expiration phase?
The internal intercostal and abdominal muscles contract, causing the thoracic volume to decrease and force air out of the lungs.
Define ventilation
Ventilation is the process of air entering / leaving the lungs.
What is tidal volume ?
Tidal Volume (TV) is the amount of air breathed in or out during normal respiration, per breath
Define minute ventilation
Minute Ventilation (VE) = volume of air inhaled per minute
What is the role haemoglobin’s?
To transport oxygen and carbon dioxide in the blood
What intensity domain does GET bridge between?
Moderate to heavy
What intensity domain does RCP bridge between?
Heavy and Severe
What intensity domain does V02 max bridge between?
Severe and extreme
What is the Fick equation?
V02=Qx(a-v02 difference)
What does the Fick equation tell us?
Rate of oxygen consumption (V02)
What is the two differences between a step and ramp test?
Step test increases exercise intensity in fixed stages , ramp test increases intensity continuously and gradually.
Ramp tests provide smoother data for identifying VO₂max and GET, while step tests suit clinical or field settings with intermittent measurements.
What are the benefits of altitude training?
Chronic altitude training → ↑ RBC production → ↑ oxygen-carrying capacity → ↑ iron requirement
What acute responses to altitude training?
Increased BF, HR, Cardiac load on right side of heart
What are the two components that determine respiratory performance?
convection (fick equation) and diffusion
