respiratory system (process of respiration) Flashcards
when the external intercostal muscles life up the rib cage what happens to the diaphragm
contracts and flattens
does the pressure of the lungs increase or decrease when expanded
decreases
what muscles are involved in expiratory doing exercise
rectus abdominus
transverse abdominus
external obliques
latissimus dorsi
serratus
what is the total longs capacity equation
TLC=TV+IRV+ERV+RV
what is the total lung capacity
the Maximus amount of air in the lungs flowing maximum inspiration and equals the sum of all volumes
what is the approx volume of the total lung capacity
6000ml
what is tidal volume
500ml of air inhaled or exhaled with each breath during normal breathing
what percentage of tidal volume reaches the alveoli
70%
where does the 30% of tidal volume go
remains in air spaces of conducting potions of system (nose, larynx etc)
what is the space called where the 30% of total volume remains
anatomic dead space
what is inspiratory reserve volume
the excess air we inhale when taking a deep breath
what is the average of inspiratory reserve volume
3100ml
what is the expiratory reserve volume
when inhaling normally and exhaling forcefully you push out 1200ml extra, the 1200ml is the expiratory reserve volume
what is the vital capacity
maximum amount of air you breath out when breathing in as much as you can
what is the equation of vital capacity
VC=TV+IRV+ERV