Which of the following is the main muscle involved in breathing? What is the name of the tiny air sacs in the lungs where gas exchange occurs? How does oxygen travel from the lungs... Which of the following is the main muscle involved in breathing? What is the name of the tiny air sacs in the lungs where gas exchange occurs? How does oxygen travel from the lungs to the rest of the body? What is the role of the epiglottis?
Understand the Problem
The question is asking about the respiratory system, specifically about the muscles involved in breathing, the structure in the lungs for gas exchange, how oxygen travels in the body, and the role of the epiglottis.
Answer
Diaphragm; Alveoli; Attached to red blood cells; Closes trachea during swallowing.
The main muscle involved in breathing is the diaphragm, the tiny air sacs in the lungs are called alveoli, oxygen travels by being attached to red blood cells in the bloodstream, and the epiglottis closes off the trachea during swallowing.
Answer for screen readers
The main muscle involved in breathing is the diaphragm, the tiny air sacs in the lungs are called alveoli, oxygen travels by being attached to red blood cells in the bloodstream, and the epiglottis closes off the trachea during swallowing.
More Information
The diaphragm is a dome-shaped muscle playing a crucial role in respiration. Alveoli are the site of gas exchange in the lungs, where oxygen enters the blood. The epiglottis prevents food from entering the airway.
Tips
A common mistake is confusing the diaphragm with other respiratory structures like bronchioles or alveoli.
Sources
- Respiratory System: Organs, Facts, Anatomy & Function - my.clevelandclinic.org
- Gas exchange - Health Video: MedlinePlus Medical Encyclopedia - medlineplus.gov
- How Lungs Work | American Lung Association - lung.org
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