Summary Last minute concepts for respiratory physiology for 1st MBBS students

, Mechanism of Breathing
Obstruction
>
- COPD - >
emphysema +



>
-
Salbutamol - bronchodilater =
> bronchial Asthma
>
-



Emphysema
- interalveolar septums break
.

caused due to be enhanced
-



atmospheric pollution and can
by smoking
>
-


Relevance/functions of RS :



1
.


Gas exchange
.
2 Acid base balance

.
3 Phonation

.
Pulmonary defence mechanism
4




5
.
Pulmonary metabolisms & handling of bioactive materials

>
- Parts :




3
Upper respiratory tract Nasal
cavity
2
.
--




pharynx
larynx
structural
Lower tract - trachea
2 .




respiratory cor]
bronchial tree anatomical

lungs

Conducting part- Nose




&
1 .




pharynx
laryux
trachea

Bronchi function
a
terminal bronchioles .
(16th gen)
physiological
.
2
Respiratory part Respiratory bronchioles
>
-




alveolar ducts

alveoli .




(23rdgen)

model -
1
.
Weibe's
lung generation wise

>
-




conducting part is till 16th
.
gen
-
> 150ml . Canatomical dead
space)
·