Intercoastal muscles are found in:
Correct answer: A. Ribs
- A. Ribs
- B. Pharynx
- C. Lungs
- D. Both B and C
Explanation
Intercostal muscles are muscles that present within the rib cage. Consist of three layers of muscles external, internal, and innermost layer they combine to fill the space between the ribs.
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About Respiration
The human respiratory system includes the air passages, lungs, alveoli and breathing muscles, while gaseous exchange explains how oxygen enters blood and carbon dioxide leaves it by diffusion. The effects of smoking include damage to cilia and alveoli, reduced gas exchange, chronic bronchitis, emphysema and increased risk of lung cancer.
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