Larynx – is part of respiratory system. It’s a hollow tube that connects your throat (pharynx) to your trachea, which then connects to your lungs. It is also known as the voice box since it houses your vocal chords and is necessary for human speaking.
Trachea – the major function of the trachea is to transport air into and out of the lungs. It provides a reliable channel for oxygen to enter your body because it is a rigid, flexible tube.
Lungs – are the main organs of the respiratory system, which helps to keep the body supplied with oxygen at all times.

Reference:
Larynx (Voice Box): Anatomy & Function. (2021). Cleveland Clinic. https://my.clevelandclinic.org/health/body/21872-larynx#:~:text=Your%20larynx%20is%20part%20of,often%20called%20the%20voice%20box.
Newman, T. (2021, December 21). What is the function and structure of the lungs, and how to do a lung function test. Medicalnewstoday.com; Medical News Today. https://www.medicalnewstoday.com/articles/305190
Respiratory System: Functions, Facts, Organs & Anatomy. (2020). Cleveland Clinic. https://my.clevelandclinic.org/health/articles/21205-respiratory-system
Trachea (Windpipe): Function and Anatomy. (2021). Cleveland Clinic. https://my.clevelandclinic.org/health/body/21828-trachea#:~:text=Your%20trachea’s%20main%20function%20is,oxygen%20to%20enter%20your%20body.

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