Respiratory System

Explore the Respiratory System! Match parts to functions, label diagrams, and learn how we breathe.

Match each part of the respiratory system with the correct function. Lungs The main organ in the respiratory system. Gases are exchanged Alveoli Tiny sacs that allow oxygen and carbon dioxide to be exchanged in the lungs Bronchus Small tubes that branch off from the trachea Trachea 5” tube that allows air to flow clearly to and from the lungs Nasal Cavity Oxygen can enter the human body through this passage Diaphragm Contracts to allow the lungs to expand and let air into them Use the matching to label the parts in the diagram below. Use the singular term, NOT the plural term. trachea bronchus diaphragm Nasal cavity lung bronchiole larynx alveolus The primary organs of the respiratory system are the _. lungs heart trachea bronchioles Which is NOT a function of the respiratory system? warms air entering the body exchanges oxygen and carbon dioxide pumps blood to the organs creates sound through the voice box The respiratory system begins in the _. alveoli lungs nose and mouth pharynx This passageway is part of both the respiratory and digestive system. larynx pharynx nasal cavity trachea The _ carries air to the left and right bronchus. esophagus bronchioles alveoli trachea The place in the lungs where the gases exchange is the _. alveoli diaphragm bronchus nose and mouth The small tree-like branches coming off the right and left bronchus branches bronchioles trachea pharynx The muscular organ that holds the vocal chords is the _. epiglottis pharynx larynx trachea The small flap of cartilage that closes when food passes (swallow) is called the _. epiglottis valve trachea bronchioles How does the respiratory system work with the digestive system? Explain what role the diaphragm plays in the respiratory system.