Respiratory system Flashcards
Tidal volume
Amount of air that moves in and out of the lungs per breath
minute ventilation
The amount of air moved in and out of the lungs in 1 min
inspiratory reserve volume
maximum amount of air that can be forcebly inspired in addition to tidal volume
expiratory reserve volume
maximum amount of air that can be forcibly expired in addition to tidal volume
vital capacity
Maximum volume of air exhaled after a maximal inspiration
residual volume
Amount of air remaining in the lungs after a maximal expiration
total lung capacity
vital capacity + residual volume
minute ventilation
The amount of air moved in and out of the lungs in 1 min
heart rate
number of beats per minute
cardiac hypertrophy
increased cardiac muscle mass
Anticipatory Rise
Increase in heart rate in preperation of exercise
role of alveoli
allows gaseous exchange between lungs and the blood
How is the alveoli suited to gasesous exchange
- 1 cell thick
- large surface area
- large blood supply
- partially permeable membrane
what is diffusion
the movement of a gas from an area of high to low concentration. (down the concentration gradient)
where are the two sites of respiration
lungs and muscles