respiratory system

respiratory system   Dan muscular system

The respiratory system ; Nasal cavity · Air is warmed and filtered as it enters the body ; Trachea · Brings air into the lungs Supported by rings of cartilage

The respiratory system ; Nasal cavity · Air is warmed and filtered as it enters the body ; Trachea · Brings air into the lungs Supported by rings of cartilage Join the Amoeba Sisters for a brief tour through the human respiratory system! This video will

ฆาตกรรมคำลวง Respiratory conditions Lung diseases are classified by their effect on lung tissue, the airways, or the lung's… Asthma is a chronic airway condition that The lungs and pulmonary system Breathing is a vital process that allows our bodies to take