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Respiratory System (Anatomy of the respiratory tract (Larynx, Pharynx,…
Respiratory System
Anatomy of the respiratory tract
Larynx
Pharynx
Bronchi
Mouth
Bronchioles
Nose
Trachea
Organs of the respiratory system and location
(upper and lower respiratory track)
larynx
trachea
pharynx
Upper Respiratory Tract
bronchi
Lower Respiratory Tract
nose
lungs
Major functions of the
respiratory system
Intake of oxygen
expelling of carbon dioxide
exchange of gases to allow us to breathe
Definitions of lung capacity terminology
(TLC) Total Lung Capacity
measurement of the total amount of air that the lung can hold
(TV) Tidal Volume
the volume of air that is inhaled or exhaled in only a single such breath.
Residual Volume
The volume of gas remaining in the lungs after a maximum expiration
Disorders of the respiratory system
emphysema
The delicate walls of the alveoli break down, reducing the gas exchange area of the lungs
bronchitis
Any irritant reaching the bronchi and bronchioles will stimulate an increased secretion of mucus. In chronic bronchitis the air passages become clogged with mucus, and this leads to a persistent cough
asthma
Periodic constriction of the bronchi and bronchioles makes it more difficult to breathe
Differences between the right and left lung and right and left
primary bronchi
Right lung
short
wide
3 lobes
no cardiac notch
no lingula
Left lung
long
narrow
2 lobes
has cardiac notch
has lingula