This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Lymphatic drainage of thyroid gland is mainly ? 
Select and explain. 
A. Sublingual nodes, B. Submandibular nodes, C. Deep cervical nodes, D. Submental nodes
C: Deep cervical nodes
Answer: C: Deep cervical nodes 
Explanation: Lymphatic drainage of thyroid Lymph from the upper pa of the gland reaches the upper deep cervical lymph nodes either directly or through the prelaryngeal nodes. Lymph from the lower pa of the gland drains to the lower deep cervical nodes directly, and also through the pretracheal and paratracheal nodes.