Human Respiratory System Grade 5 Science Worksheets

 Nasal Cavity

01.

 Warms, moisturizes, and filters air, preventing contaminants from entering the respiratory tract.

 Pharynx

02.

 Acts as a passageway for air from the nose and mouth to the larynx and esophagus, facilitating both breathing and swallowing.

 Larynx

03.

 Protects the airway, allowing only air to pass through while preventing food and drinks from entering. Also houses the vocal cords, influencing voice pitch and volume.

 Trachea (Windpipe)

04.

 Transports air between the larynx and the bronchi, with flexible cartilage rings supporting its structure.

 Bronchi

05.

Branches of the trachea that lead to the lungs, facilitating gas exchange between the air and blood in tiny air sacs called alveoli.

 For Further Learning

06.

 Explore more about the respiratory and digestive systems at etutorworld.com.

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