Human Respiratory System Grade 5 Science Worksheets

 Function of Respiratory System

01.

Facilitates exchange of oxygen and carbon dioxide between body and environment, supplying oxygen to cells and removing carbon dioxide.

 Components of Respiratory System

02.

Includes nasal passages, pharynx, larynx, trachea, bronchial tubes, and lungs.

 Breathing Process

03.

 Involves inhaling oxygen, utilizing it for energy production, and exhaling carbon dioxide.

 Anatomy Overview

04.

Nasal cavity warms and moisturizes air; pharynx regulates air passage; larynx prevents food entry into airway; trachea connects larynx to bronchi.

Bronchial Tubes

05.

 Divisions of trachea, bronchi connect it to lungs, facilitating gas exchange between lungs and external environment.

 Lungs

06.

 Pair of organs in chest cavity facilitating gas exchange between alveoli and blood vessels, crucial for cellular respiration.

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