3.8.8: quiet breath:summary illustration

The graph shows temporal changes in each index within one respiratory cycle. The inflow during inspiration is shown as a negative value, and the outflow during expiration is shown as a positive value.
 
 beginning of inspirationinspirationend of inspirationbeginning of expirationexpirationend of expiratioin
diaphragmcontractcontractcontractrelaxrelaxrelax
lung volumeminmin→maxmaxmaxmax→minmin
alveolar pressureatmospheric pressurenegative pressureatmospheric pressureatmospheric pressurepositive pressureatmospheric pressure
flownoneinnonenoneoutnone
inward elastic force of the lungsminmin→maxmaxmaxmax→minmin
negative pleural pressureminmin→maxmaxmaxmax→minmin
                                     (within one quiet respiratory cycle)

チャレンジクイズ

1 The diaphragm is contracting during inspiration expiration .

2 The diaphragm is relaxing during inspiration B expiration .

3 The lung volume is at its minimum (within a quiet breath)

during expiration
at the end of expiration (beginning of inspiration)
at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
during inspiration
at the end of inspiration (beginning of expiration)
.

4 The lung volume is increasing from its minimum to its maximum (within a quiet breath)

during expiration
at the end of inspiration (beginning of expiration)
during inspiration
at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
at the end of expiration (beginning of inspiration)
.

5 The lung volume is at its maximum (within a quiet breath)

at the end of expiration (beginning of inspiration)
at the end of inspiration (beginning of expiration)
during expiration
at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
during inspiration
.

6 The lung volume is decreasing from its maximum to its minimum (within a quiet breath)

at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
during inspiration
at the end of expiration (beginning of inspiration)
at the end of inspiration (beginning of expiration)
during expiration
.

7 The inward elastic force of the lungs is at its minimum

at the end of inspiration (beginning of expiration)
during inspiration
at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
during expiration
at the end of expiration (beginning of inspiration)
.

8 The inward elastic force of the lungs is increasing from its minimum to its maximum

at the end of expiration (beginning of inspiration)
at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
during expiration
during inspiration
at the end of inspiration (beginning of expiration)
.

9 The inward elastic force of the lungs is at its maximum

at the end of expiration (beginning of inspiration)
at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
during expiration
at the end of inspiration (beginning of expiration)
during inspiration
.

10 The inward elastic force of the lungs is decreasing from its maximum to its minimum

at the end of expiration (beginning of inspiration)
during inspiration
during expiration
at the end of inspiration (beginning of expiration)
at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
.

11 Gas (air) flows in

at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
during expiration
at the end of inspiration (beginning of expiration)
during inspiration
at the end of expiration (beginning of inspiration)
.

12 There is no gas flow

at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
during expiration
at the end of expiration (beginning of inspiration)
C at the end of inspiration (beginning of expiration)
during inspiration
.

13 Gas flows out

during inspiration
at the end of expiration (beginning of inspiration)
at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
at the end of inspiration (beginning of expiration)
during expiration
.

14 The pressure inside the lungs (alveolar pressure) is negative compared to the atmospheric pressure

at the end of expiration (beginning of inspiration)
during expiration
at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
at the end of inspiration (beginning of expiration)
during inspiration
.

15 The pressure inside the lungs (alveolar pressure) is equal to the atmospheric pressure

during expiration
at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
at the end of expiration (beginning of inspiration)
during inspiration
at the end of inspiration (beginning of expiration)
.

16 The pressure inside the lungs (alveolar pressure) is positive compared to the atmospheric pressure

at the end of inspiration (beginning of expiration)
during inspiration
at the end of expiration (beginning of inspiration)
at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
during expiration
.

17 The negative pleural pressure is at its minimum (within a quiet breath)

during inspiration
at the end of inspiration (beginning of expiration)
during expiration
at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
at the end of expiration (beginning of inspiration)
.

18 The negative pleural pressure is increasing from its minimum to its maximum (within a quiet breath)

at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
during expiration
at the end of expiration (beginning of inspiration)
during inspiration
at the end of inspiration (beginning of expiration)
.

19 The negative pleural pressure is at its maximum (within a quiet breath)

during expiration
during inspiration
at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
at the end of expiration (beginning of inspiration)
at the end of inspiration (beginning of expiration)
.

20 The negative pleural pressure is decreasing from its maximum to its minimum (within a quiet breath)

during expiration
at the end of inspiration (beginning of expiration) and at the end of expiration (beginning of inspiration)
at the end of expiration (beginning of inspiration)
at the end of inspiration (beginning of expiration)
during inspiration
.

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: スパイロメータ/肺気量

: Lung volume and pleural pressure