Which component of communication is described as the medium through which messages are transmitted?

The component of communication referred to as the medium through which messages are transmitted is the channel. In communication theory, the channel is the method or pathway used to convey the message from the sender (the source) to the receiver. This can include various forms of communication such as spoken words, written text, electronic media, or nonverbal signals. Understanding the channel is crucial because it impacts how effectively the message is received and understood by the recipient.

Other components of communication like the source refers to the originator of the message, the message itself denotes the content being communicated, and the receiver is the individual or group for whom the message is intended. Each of these components plays a vital role in the communication process, but the channel specifically addresses the mode of transmission which is essential for the successful exchange of information.