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14 Cards in this Set

  • Front
  • Back
4 Minimum Effort Criterium for "choosing" what respiratory muscles to use
1. Mechanical advantage
2. Assistance or opposition of the environment
3. muscle mass
4. relationship between thoracic volume change and muscle length
measures the volume exchanged between the body and the atmosphere. deep breath in then exhale completely
functional residual capacity
expiratory reserve volume- quantity of air that can still be expired after resting expiration
resting expiratory end level
both resting and speech breaths end at this level about 40% VC
vital capacity= ERV+IRV+TV
qualities of resting respiration
12-15 cycles per minute
same time to inspire and expire
10% of VC
at REL Palv= Patm
Palv variations of +- 2cm H20
qualities of speech respiration
pressure does not vary much over time 10cm H2O
10% insp 90% exp
IEL higher for speech
50-70% VC
Hooke's Law
F=ks(change Length)
Boyle's Law
Elasticity of Resp system comes from 4 places...
1. Costal cartilages
2. tissue that form the lungs
3. connective tissues in the thoracic walls
4. surface tension of the alveoli (most important)
Total lung capacity= RV+ERV+TV+IRV
Max Palv pressure at 100% VC
130 cm H2O
*no less than zero
*before a sneeze
Min Palv pressure at 0% VC
-110 cm H2O
*no more than zero
*before a hiccup