drpkaur
Forum Guru
Topics: 195
Posts: 808
|
For a normal healthy adult, changing from the supine to the standing position results in
A markedly diminished tidal volume.
An increase in the expiratory reserve volume (ERV).
An approximate doubling of the inspiratory reserve volume (IRV).
An increase in the volume of the RV.
A decrease in the volume of the FRC.
|
| robin082006
Forum Hero
Topics: 471
Posts: 5,125
|
An increase in the expiratory reserve volume (ERV).
___________________
The Key to Succeed is Patience.
|
| drpkaur
Forum Guru
Topics: 195
Posts: 808
|
wow gr8,here is the explanation for postural changes
In changing from a standing to supine position, the FRC is reduced because gravity is no longer pulling the abdominal contents away from the diaphragm. In the supine position, gravity also directly opposes the outward recoil of the chest wall and tends to compress the chest cavity to a smaller volume that is reflected by a smaller FRC. This decrease in the FRC is mostly at the expense of the ERV, whereas the IRV and IC are slightly increased so TLC is not markedly changed.
Attached Files:
page6.jpg (23 KB, 35 downloads)
|
| alexaE
Forum Elite
Topics: 23
Posts: 334
|
so yes it is an increase in ERV
___________________
veni vidi...vincam
|
| mjl1717
Forum Hero
Topics: 955
Posts: 5,450
|
good q.
___________________
Smell the coffee! "Is That an Osler move??"
|
|
| |
| | | | | |
