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RESPIRATION

Definition : a process in breaking of glucose(food) with the presence of oxygen to produce

energy / oxidation of food process.

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STRUCTURE FUNCTION

NASAL CAVITY Air entering from the nostrils is led to the nasal cavity

TRACHEA An airway through which respiratory air travels. Therings of cartilage within its walls keep the trachea open.

BRONCHUS Passage divided from trachea

[ singular = bronchus, plural = bronchi ]

BRONCHIOLE A narrow tube inside the lungs that branches off the

main air passages bronchi

ALVEOLUS Place where exchange of gases take place

RIB CAGE To protect the lungs and help in breathing mechanism

LUNG A respiratory organ

INTERCOSTAL MUSCLES Antagonistic muscles that help the movement of rib

cage for breathing mechanism

DIAPHRAGM A muscular membrane that separates the thoracic

cavity and the abdominal cavity

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