Review the anatomical structures that a molecule of O_2 would encounter on its j
ID: 167469 • Letter: R
Question
Review the anatomical structures that a molecule of O_2 would encounter on its journey from the atmosphere to an alveolus by completing each sentence. Then, click and drag the sentences to arrange them in the order in which air flows into the lungs. conducting larynx alveolar ducts alveolar sacs nose esophagus bronchi bronchioles respiratory pharynx respiratory bronchioles alveoli trachea terminal bronchioles Alveoli first begin to appear attached to the walls of the _____, which then branch into the _____, and the airways finally end in grape-like clusters consisting entirely of alveoli, which are called _____. The larynx opens into a long tube, the _____, which in turn branches into two _____, one of which enters each lung. Rings of cartilage support the walls. Bronchioles continue branching into the _____, which are the final airways of the _____ zone. This zone contains no _____ and therefore has no gas exchange nose with the blood. The pharynx branches into two paths: the _____, through which food passes to the stomach, and the _____, which is part of the airways and houses the vocal cords. These last three structures make up what is called the _____ zone, which is the region where gases exchange with the blood. During inspiration, air passes through either the _____ or mouth into the _____, a passage common to both air and food. The first airway branches that no longer contain cartilage are termed _____.Explanation / Answer
Alveoli first begin to appear attached to the walls of the bronchioles, which then branch into the alveolar ducts, and the airways finally end in grape-like dlusters consisting entirley of alveoli, which are called alveolar sacs.
The larynx opens into a long tube, trachea which then branches into two bronchi one of which enters into each lungs. Rings of the cartilage support each wall.
Bronchioles continue branching into terminal bronchioles which are final airways of the conducting zone. This zone contains no alveoli and therefore has no gas exchange with the blood.
The pharynx, branches into two parts, th oesophagus through which the food passes to the stomach and the larynx which is the part of the airways and houses the vocal cords.
These three last structures make up the respiratory zone, which is the region were exchange of gases takes place.
During inspiration, air passes through either the nose or the mouth into the respiratory bronchioles a passage common to both air and blood.
The first ariway brances that no longer contain cartilage are termed brronchioles.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.