Final answer:
The mnemonic for remembering the nerve roots C7 and C8 is C7, C8, close the gate.
Step-by-step explanation:
The mnemonic for remembering the nerve roots C7 and C8 is C7, C8, close the gate. Mnemonics can be helpful tools for remembering information, especially when memorizing a list of items like nerve roots. By associating the letters with a memorable phrase, it becomes easier to recall the information when needed.