MCAT Biology Question 81: Answer and Explanation
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Question: 81
6. Each of the following statements regarding the anatomy of the respiratory system is true EXCEPT:
- A. the epiglottis covers the glottis during swallowing to ensure that food does not enter the trachea.
- B. the trachea and bronchi are lined by ciliated epithelial cells.
- C. the pharynx contains two vocal cords, which are controlled by skeletal muscle and cartilage.
- D. the nares are lined with vibrissae, which help filter out particulate matter from inhaled air.
Correct Answer: C
Explanation:
The pharynx, which lies behind the nasal cavity and oral cavity, is a common pathway for food entering the digestive system and air entering the respiratory system. It is the larynx that contains the vocal cords, not the pharynx.