answer the question below please **Pathway of an Oxygen Molecule Through the Respiratory Tract**Beginning with the nose, trace the pathway of a molecule of oxygen as it enters the respiratory tract and travels to the alveolus:1. **Nose** - The initial entry point for air.2. **Nasal Cavity** - Air is filtered, warmed, and humidified.3. **Nasopharynx** - Connects the nasal cavity to the oropharynx.4. **Oropharynx** - Passage for both air and food.5. **Laryngopharynx** - The section where the pathways for food and air diverge.6. **Larynx** - Contains the vocal cords and protects the trachea against food aspiration.7. **Trachea** - A tube connecting the larynx to the bronchi.8. **Primary Bronchus** - The trachea divides into two main bronchi, each leading to a lung.9. **Secondary Bronchus** - Each main bronchus divides into a secondary bronchus.10. **Tertiary Bronchus** - Further subdivision of the bronchi, supplying air to specific regions of the lungs.11. **Bronchioles** - Smaller branches of the bronchi leading to the alveolar structures.12. **Terminal Bronchioles** - The smallest bronchioles that lead to respiratory bronchioles.13. **Respiratory Bronchioles** - These contain alveoli and are involved in the exchange of gases.14. **Alveolar Duct** - Channels that lead to alveolar sacs.15. **Alveolar Sac** - Clusters of alveoli where gas exchange occurs.16. **Alveolus** - The final destination for the oxygen molecule, where it diffuses into the blood.This sequence illustrates the detailed pathway of oxygen as it travels through the respiratory system, ultimately reaching the tiny air sacs where gas exchange takes place.

The respiratory system is a remarkable biological mechanism that enables our bodies to acquire…

Beginning with the nose, trace the pathway of a molecule of oxygen as it enters the respiratory tract and travels to the alveolus. ◆ alveolus alveolar sac alveolar duct respiratory bronchioles terminal bronchioles bronchioles tertiary bronchus secondary bronchus primary bronchus ◆ trachea ◆ larynx laryngopharynx nose nasal cavity ◆ nasopharynx ◆ oropharynx

Beginning with the nose, trace the pathway of a molecule of oxygen as it enters the respiratory tract and travels to the alveolus. ◆ alveolus alveolar sac alveolar duct respiratory bronchioles terminal bronchioles bronchioles tertiary bronchus secondary bronchus primary bronchus ◆ trachea ◆ larynx laryngopharynx nose nasal cavity ◆ nasopharynx ◆ oropharynx

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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answer the question below please

**Pathway of an Oxygen Molecule Through the Respiratory Tract**

Beginning with the nose, trace the pathway of a molecule of oxygen as it enters the respiratory tract and travels to the alveolus:

1. **Nose** - The initial entry point for air.
2. **Nasal Cavity** - Air is filtered, warmed, and humidified.
3. **Nasopharynx** - Connects the nasal cavity to the oropharynx.
4. **Oropharynx** - Passage for both air and food.
5. **Laryngopharynx** - The section where the pathways for food and air diverge.
6. **Larynx** - Contains the vocal cords and protects the trachea against food aspiration.
7. **Trachea** - A tube connecting the larynx to the bronchi.
8. **Primary Bronchus** - The trachea divides into two main bronchi, each leading to a lung.
9. **Secondary Bronchus** - Each main bronchus divides into a secondary bronchus.
10. **Tertiary Bronchus** - Further subdivision of the bronchi, supplying air to specific regions of the lungs.
11. **Bronchioles** - Smaller branches of the bronchi leading to the alveolar structures.
12. **Terminal Bronchioles** - The smallest bronchioles that lead to respiratory bronchioles.
13. **Respiratory Bronchioles** - These contain alveoli and are involved in the exchange of gases.
14. **Alveolar Duct** - Channels that lead to alveolar sacs.
15. **Alveolar Sac** - Clusters of alveoli where gas exchange occurs.
16. **Alveolus** - The final destination for the oxygen molecule, where it diffuses into the blood.

This sequence illustrates the detailed pathway of oxygen as it travels through the respiratory system, ultimately reaching the tiny air sacs where gas exchange takes place.

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