Physiology of Laughter: What Creates the Wonderful Sound of Laughter?

1400 Words6 Pages
Laughter is unique movements of the face and body that are expressed due to amusement and sometimes contempt or derision. (Websters) But do we not need more than that? Do we not deserve to know more? Of course. Although laughter is something that we don’t ever really think about doing, it still requires a lot of our brain, lungs, and muscles. Laughing’s medical definition is a psycho-physiological reflex, a successive, rhythmic, spasmodic expiration with open glottis and vibration of the vocal chords often accompanied by a baring of teeth and facial grimaces. (Nieder, 2014). It simply means that no matter what happens, we can’t control laughter. It’s an involuntary impulse. In fact, it’s a negatively charged electrical impulse…show more content…
Laughter is unique movements of the face and body that are expressed due to amusement and sometimes contempt or derision. (Websters) But do we not need more than that? Do we not deserve to know more? Of course. Although laughter is something that we don’t ever really think about doing, it still requires a lot of our brain, lungs, and muscles. Laughing’s medical definition is a psycho-physiological reflex, a successive, rhythmic, spasmodic expiration with open glottis and vibration of the vocal chords often accompanied by a baring of teeth and facial grimaces. (Nieder, 2014). It simply means that no matter what happens, we can’t control laughter. It’s an involuntary impulse. In fact, it’s a negatively charged electrical impulse traveling through the cerebral cortex. However, I want to know more. What muscles produce the huge smile? What creates the wonderful sound of laughter? Laughter is often involuntary. In fact, it is very difficult to fake it because it requires so many muscles. The main two muscles used in laughing are the zygomaticus major and minor anchor located at the cheekbones and go down towards the jaw. They both pull the face upward and the zygomaticus major also makes sure to pull the top lip upward and outward. Whenever we laugh, we also produce a sound. Whether it be a chuckle or a whole hearty laugh, we are still using the same methods as we do whenever we cough or speak. We use the lungs and the larynx, also known as a voice box, to make the

More about Physiology of Laughter: What Creates the Wonderful Sound of Laughter?

Open Document