This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
After laryngectomy, dynamic oesophageal voice is produced from 
Select and explain. 
A. Pharynx, B. Pharyngoesophageal segment, C. Trachea, D. Buccal mucosa
B: Pharyngoesophageal segment
Answer: B: Pharyngoesophageal segment 
Explanation: Esophageal speech is a skill that can help patients to communicate after a laryngectomy, the most common surgery used for the treatment of laryngeal cancer. ... This hole is called a tracheostoma; the patient uses it to breathe through and cough through after the operation. Ref otolaryngology dhingra 3e