Distinguish between the conducting portion and respiratory portion of the respiratory tract. The conducting portion of the respiratory tract includes the respiratory bronchioles and alveoli. The respiratory portion includes the nasal cavity and extends through the pharynx, larynx, trachea, bronchi, and larger bronchioles. The conducting portion includes the trachea, bronchi, larger bronchioles, respiratory bronchioles and alveoli. The respiratory portion includes the nasal cavity and extends through the pharynx and larynx. The conducting portion includes the nasal cavity and pharynx. The respiratory portion includes the larynx, trachea, bronchi, larger bronchioles, respiratory bronchioles, and alveoli. The conducting portion includes the nasal cavity and extends through the pharynx and larynx. The respiratory portion includes the trachea, bronchi, larger bronchioles, respiratory bronchioles and alveoli. The conducting portion includes the nasal cavity and extends through the pharynx, larynx, trachea, bronchi, and larger bronchioles. The respiratory portion includes the respiratory bronchioles and alveoli.