Anatomy The extrinsic muscles that aid in depressing the tongue are the: A Genioglossus and hyoglossus. B Genioglossus and palatoglossus. C Hyoglossus and styloglossus D Styloglossus and palatoglossus. 💡 Explanation The extrinsic muscles that aid in depressing the tongue are the: ✓ Correct Answer: A. Genioglossus and hyoglossus.