Respiration Physiology Flashcards
what is the goal of respiration?
getting O2 to blood and getting rid of CO2 waste
Adults have about ____ to ___ respiratory cycles/min
12-18
1 inspiration + 1 expiration = 1 ___
cycle of respiration
Tidal respiration = ____ mL (___ L) of air each cycle
500; 1/2
Term for volume of air involved in 1 min of respiration
Minute volume
In the respiratory cycle, the movement of air into lungs is called ___
Ventilation
young children breathe __-__x more than adults because their lungs completely fill their thorax
2-3
Alveoli growth increases until age __, when there are __ million alveoli (adult amount)
8; 300
The lungs primarily grow because the ___ grows faster and stretches them
rib cage
air in an adult’s lungs that can’t be expelled
Residual volume (RV)
Respiration rates on the upper side of adult amount (18) at age __
10
1 mL = ___ cubic centimenter
1
volume of air exchanged during one unconscious cycle of respiration
Tidal volume (TV)
volume of air that can be inhaled after tidal inspiration
Inspiratory reserve volume (IRV)
In physiology, it’s not inhaling, it’s
inspiration
In physiology, it’s not exhaling, it’s
expiration
volume of air that can be expired following passive, tidal expiration
Expiratory reserve volume (ERV)
another name for expiratory reserve volume
Resting Lung Volume
part of residual volume, specifically the stuff within passageways that can’t be involved in gas exchange
Dead space air
volume of air that can be inhaled after max exhale
Vital capacity (VC)
IRV + TV + ERV =
VC
volume of air in body at end of passive exhalation
Functional reserve capacity (FRC)
Total Lung Capacity (TLC) is the sum of ___
inspiratory reserve, tidal volume, expir. reserve vol, and resid vol
max insp. volume possible after tidal expiration
Inspiratory capacity (IC)
IRV is short for
inspiratory reserve volume