- published: 27 Feb 2016
- views: 434
The pulmonary airway comprises those parts of the respiratory system through which air flows, conceptually beginning (on inhalation from the external environment) at the nose and mouth, and terminating in the alveoli. It is generally used synonymously with respiratory tract, to avoid sounding overly scientific.
From the mouth or nose, inhaled air passes through the pharynx into the trachea, where it separates into the left and right main bronchi at the carina, situated at the level of the second thoracic vertebra. The main bronchi then branch into large bronchioles, one for each lobe of the lung. Within the lobes, the bronchioles further subdivide some twenty times, ending in clusters of alveoli.
The epithelial surfaces of the airway contain cilia. Inhaled particles adhere to mucus secreted by goblet cells, which is continuously driven outwards by the cilia. The epithelium of the airway also secretes a watery fluid upon which the mucus can ride freely. The production of this fluid is impaired by the disease cystic fibrosis. Macrophages in the airways help promote prophylaxis and prevent infection and contamination, by engulfing bacteria and other inhaled particles.
We didn't know
We didn't know
We want love
We want love
We didn't know
We didn't know
There were times I betrayed what was sacred to myself and lost.
Over lines I'm ashamed of the things that I had done and crossed.
I was so fast to run when doubt had come
So fast to run, so fast to run.
We didn't know
We didn't know
We want love
We want love
We didn't know
We didn't know
So many times when I gave I was faking and I felt so lone.
I'm a munster, I´m an adict, I'm a danger to myself, I know.
We didn't know
We didn't know
We want love
We want love
We didn't know
We didn't know
We want love
We want love
Can we take another round?
Can we take another round of love..
Without the guns?
Can we take another round?
We didn't know
We didn't know
We want love
We want love
We didn't know
We didn't know
We want love
We want love
I'm willing to listen
I'm willing to say
I'm willing to try or throw it all away
Do we throw it all behind?
Throw it
On a dime life can change
Everything that you once loved you've lost
I'll tell you why I'm afraid with the symptoms
I've been making up
We didn't know
We didn't know
We want love
We want love
Willing and now
Willing and now
We want love
We want love
Can we take another round?
can we take another round of love..
Without the gun?