Larynx and Pharynx

Larynx noun - A cartilaginous structure at the top of the trachea; contains elastic vocal cords that are the source of the vocal tone in speech.

Pharynx is a synonym for larynx in neck topic. In some cases you can use "Pharynx" instead a noun "Larynx", when it comes to topics like vocal organs.

Pharynx noun - The passage to the stomach and lungs; in the front part of the neck below the chin and above the collarbone.

Larynx is a synonym for pharynx in neck topic. You can use "Larynx" instead a noun "Pharynx", if it concerns topics such as vocal organs.