What is the purpose of a throttle body in an Audi 80?

I recently noticed a part called the throttle body in my Audi 80 and I'm curious what its role is in the functioning of my car.

The throttle body is an important component of your car's fuel intake system. It controls the amount of air that enters the engine, which ultimately affects the amount of fuel that is used. This helps maintain the proper air-to-fuel ratio for optimal performance and fuel efficiency.