Artwork of vomiting mechanism in human body

Wall Art and Photo Gifts from Science Photo Library

Artwork of vomiting mechanism in human body

Vomiting. Illustration of the mechanism that causes vomiting in the human body. An impulse from the front of the brain has stimulated the vomiting centre (green) in the brainstem. This sends nerve impulses to the stomach, diaphragm and abdominal wall. In response, the diaphragm (red line above stomach) pushes down, the abdominal wall presses inwards, and the bottom of the stomach constricts. The stomach contents are expelled up through the oesophagus and out of the mouth in a jet. Vomiting can be triggered by the digestive system, balance organs, and certain compounds in the bloodstream, such as alcohol. It can also occur as a purely psychological reaction of disgust

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6446467

© JOHN BAVOSI/SCIENCE PHOTO LIBRARY

Mechanism Nausea Nerve Nerves Nervous Reflex Stomach System Vomiting Vomit

EDITORS COMMENTS
This artwork showcases the intricate mechanism behind vomiting in the human body. The illustration highlights how an impulse from the front of the brain stimulates the vomiting center, depicted in vibrant green, located within the brainstem. From there, a series of nerve impulses are sent to various parts of the body involved in this reflex action. The visual representation reveals that when triggered, the diaphragm (represented by a bold red line above the stomach) pushes downward while simultaneously, the abdominal wall presses inward. This coordinated effort forces constriction at the bottom of the stomach, resulting in expulsion of its contents through both oesophagus and mouth with forceful intensity. Interestingly, this natural response can be initiated by multiple factors such as disturbances within our digestive system or balance organs. Additionally, certain compounds present in our bloodstream like alcohol can also trigger this bodily reaction. Furthermore, it is intriguing to note that vomiting can even occur purely as a psychological response driven by feelings of disgust. Through this thought-provoking print from Science Photo Library's collection on anatomy and nervous system illustrations, viewers gain insight into how our bodies instinctively respond to various stimuli. It serves as a reminder that even involuntary actions like vomiting have complex mechanisms orchestrated by our nerves and muscles working together seamlessly for our well-being.

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