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Questions and Answers
Which part is included in the upper respiratory tract?
What type of epithelium is found in the upper respiratory tract?
Which structure is part of the lower respiratory tract?
Which parts of the respiratory system are involved in the gas exchange process?
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Which function does evaporation serve in the respiratory system?
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Which of the following is NOT a part of the conducting portion of the respiratory system?
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Study Notes
Divisions of the Respiratory System
- The respiratory system is divided into two main parts: Upper Respiratory Tract (URT) and Lower Respiratory Tract (LRT).
Upper Respiratory Tract (URT)
- Located outside the thoracic cavity (chest).
- Comprises: nasal cavity, pharynx, larynx, and upper part of the trachea.
- Lined with ciliated epithelium, which helps with evaporation to moisten and protect the body.
Lower Respiratory Tract (LRT)
- Located inside the thoracic cavity.
- Comprises: lower part of the trachea, bronchi, bronchioles, alveolar sacs (alveoli and alveolar ducts).
Functions of the Respiratory Tract
- Divided into two main functions: conducting portion and respiratory portion.
- Conducting portion: conducts air and includes pharynx, larynx, trachea, bronchi, and bronchioles.
- Respiratory portion: responsible for gas exchange and includes alveolar sacs (alveoli) and alveolar ducts of the lungs.
Components of the Respiratory System
- Nose: part of the upper respiratory tract.
- Mouth: part of the upper respiratory tract.
- Trachea: tube that connects the throat to the lungs.
- Lungs: organs responsible for gas exchange.
- Diaphragm: muscle that separates the chest cavity from the abdominal cavity.
- Pharynx: throat.
- Larynx: voice box.
- Bronchus: airway that connects the trachea to the lungs.
- Bronchioles: smaller airways that branch off from the bronchus.
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Description
This quiz covers the anatomy of the respiratory system, including the upper and lower respiratory tracts and their components.
