The book Johnny Got His Gun kind of answers this question. In the book, a WWI soldier gets blown up by an artillery shell and wakes up in a hospital missing most of his body. He has lost his arms, legs, nose, mouth, eyes, and ears.

In the end he learns he can communicate with a nurse by tapping his head in Morse code. So it would seem as long as you could move you head with your neck, you can still communicate with others.

One of my favorite questions to answer; what’s the difference between a country, a state, and a nation. All 3 terms are used interchangeably but actually do have very specific meanings.

A country is the geographical region that includes the territories and borders of a state or nation.

A state is the governing body that operates and exerts administrative control over a territory or nation.

A nation is much more complicated and not as clear cut but in essence is the people who occupy a country or state. The bonds that create a nation can be different depending on who you ask and be a global world spanning bond like a religion or language or something small scale and local, like a sports team or a neighborhood block.

Hope that helps