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about respiratory system

1.respiratory system organs

a.nasal opening and nasal cavity

b.throat

c.windpipe

d.branch of trakea

e.right and left lungs

2.the way human breathes

breathing is an effort to intake air from outside the body into the lungs(inspiration) and discharge the reminder (expiration).breath frequency depends on activity,sex,age,and evironmetal temperature.in normal condition,someone has breath frequency between 15-20 times per minute

a.Thoracic Breathing

b.Abdominal Breathing

Gas exchange procces

Pulmonary artery transports the blood from heart to lungs.The blood vessels carry deoxygenated(dirty) blood that contains a lot of metabolic waste,which is carbon dioxide.The vessels branch and form very thin beds(capillary vessels) in air sack of lungs (alveoli).

Abnormalities and Disorders of Respiratory System

a.Bronchtis is an inflammation of mucus membrane in bronchi.

b.TBC (tubercolosis) is a lung infection xaused by Mycobacterium btuberculosis

c.Tonsillitis is an inflammation of the tonsils caused by bacteria