This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
All are true about adenoids except 
Select and explain. 
A. Physiological growth up to 6 years, B. Crypta magna present, C. Present in nasopharynx, D. Supplied by facial aery
B: Crypta magna present
Answer: B: Crypta magna present 
Explanation: The adenoids are a mass of soft tissue behind the nasal cavity. Like lymph nodes, adenoids are pa of the immune system and are made of the same type of tissue (lymphoid tissue). White blood cells circulate through the adenoids and other lymphoid tissue, reacting to foreign invaders in the body.