respiratory system by Freda charles https://padlet.com/omaffreda/8p73js5jgpl0 chapter 22 en-us 2017-08-09 16:25:44 UTC 2025-11-03 01:57:41 UTC hello@padlet.com Mechanics of breathing omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180500453 two phases
a. inspiration
b. expiration ]]> 2017-08-09 16:26:58 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180500453 Pressure relationships in the thoracic cavity omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180500738 a. atmospheric pressure - i atmosphere
b. intrapulmonary pressure- pressure in alveoli

c. intrapleural pressure - pressure in pleural cavity

d. transpulmonary pressure:- keeps lung spaces open.

]]> 2017-08-09 16:29:36 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180500738 ATELECTASIS omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180501388 collapse of lungs]]> 2017-08-09 16:35:23 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180501388 PNEUMOTHORAX omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180501510 air in pleural cavity]]> 2017-08-09 16:36:43 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180501510 BOYLE'S LAW omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180501708 relationship between pressure and volume of a gas.]]> 2017-08-09 16:38:13 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180501708 ACTION OF INTERCOASTAL MUSCLES omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180501953 when external intercoastals contract, rib cage is lifted up and out]]> 2017-08-09 16:40:11 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180501953 ACTION OF THE DIAPHRAGM omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180502283 when dome-shaped diaphragm contracts, it moves inferiorly and flattens out]]> 2017-08-09 16:42:31 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180502283 EXPIRATION omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180502748 quiet expiration : passive process
forced expiration: active process]]> 2017-08-09 16:45:43 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180502748 NON RESPIRATORY AIR MOVEMENT omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180502887 coughing, sneezing, crying, laughing, hiccups and yawns]]> 2017-08-09 16:46:53 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180502887 PHYSICAL FACTORS INFLUENCING PULMONARY RESPIRATION omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180503052 AIRWAY RESISTANCE
ALVEOLAR SURFACE TENSION
LUNG COMPLIANCE]]> 2017-08-09 16:48:12 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180503052 SURFACTANT omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180503402 A BODY DETERGENT LIKE LIPID AND PROTEIN COMPLEX THAT HELPS REDUCE SURFACE TENSION OF ALVEOLAR FLUID; Insufficient quantity of surfactant in premature infants causes infant respiratory distress syndrome]]> 2017-08-09 16:50:42 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180503402 LUNG COMPLIANCE omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180503946 measure of change in lung volume that occurs with given change in transpulmonary pressure

CAN BE DIMINISHED BY
a. fibrosis
b. reduced production of surfactant 
c. decreased flexibility of thoracic cage]]> 2017-08-09 16:54:42 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180503946 RESPIRATORY VOLUMES omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180504731 Tidal volume (TV): amount of air moved in and out of lungs with each breath

Inspiratory reserve volume (IRV): amount of air that can be inspired forcibly beyond tidal volume

Expiratory reserve volume (ERV): amount of air that can be forcibly expelled from the lungs

Residual volume (RV): amount of air that remains in lungs


]]> 2017-08-09 17:00:21 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180504731 RESPIRATORY CAPACITIES omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180505899 Inspiratorycapacity (IC): sum of TV + IRV
Functional residual capacity (FRC): sum of RV + ERV
Vital capacity (VC): sum of TV + IRV + ERV
Total lung capacity (TLC): sum of all lung volumes (TV + IRV+ ERV + RV)
]]> 2017-08-09 17:07:09 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180505899 DEAD SPACE omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180506084 Anatomical dead space: does not contribute to gas exchange
Alveolar dead space: space occupied by nonfunctional alveoli
Total dead space: sum of anatomical and alveolar dead space]]> 2017-08-09 17:08:26 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180506084 Pulmonary Function Tests omaffreda https://padlet.com/omaffreda/8p73js5jgpl0/wish/180506255 Forced vital capacity (FVC): amount of gas forcibly expelled after taking deep breath
Forced expiratory volume (FEV): amount of gas expelled during specific time interval of FVC]]> 2017-08-09 17:09:59 UTC https://padlet.com/omaffreda/8p73js5jgpl0/wish/180506255