Artwork of vomiting reflex & causes of nausea

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Artwork of vomiting reflex & causes of nausea

Vomiting. Illustrations of the mechanism (at centre) & causes (at left and right) of vomiting in the human body. An impulse from the brain stimulates the vomiting centre (green, at upper centre) in the brainstem. Nerve impulses sent to the stomach, diaphragm and abdominal wall (at lower centre) result in the stomachs contents being forcibly expelled. Vomiting can be triggered by stomach disorders (lower left) or disorders affecting the balancing mechanism of the inner ear (at left). Other causes include raised pressure in the skull (upper right) caused by head injury or brain tumour; and hormonal changes during pregnancy (at lower right)

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

Media ID 6446979

© JOHN BAVOSI/SCIENCE PHOTO LIBRARY

Head Ache Indigestion Mechanism Nausea Nerve Nerves Nervous Pregnancy Reflex Stomach System Vomiting Vomit

EDITORS COMMENTS
This artwork delves into the intricate workings of the human body's vomiting reflex and explores the various causes of nausea. At its center, we witness a detailed illustration of the mechanism behind vomiting, where an impulse from the brain stimulates the prominent green-colored vomiting center located in the brainstem. This central command sends nerve impulses to crucial areas such as the stomach, diaphragm, and abdominal wall. As our gaze shifts towards both sides of this thought-provoking print, we encounter a myriad of factors that can trigger this involuntary response. On one side, stomach disorders take their place as a potential culprit for inducing bouts of vomiting. Meanwhile, on the other side lies disorders affecting our inner ear's balancing mechanism – another possible cause. The upper right corner reminds us that raised pressure in the skull due to head injuries or brain tumors can also lead to this unsettling experience. Lastly, hormonal changes during pregnancy find their spot at lower right as yet another contributor to nausea and its subsequent expulsion. Through meticulous attention to detail and scientific accuracy, this artwork offers viewers a deeper understanding of how our nervous system orchestrates these complex bodily reactions. It serves as a visual testament to both medical knowledge and artistic prowess while shedding light on an aspect of human anatomy often overlooked but universally experienced: vomit-inducing reflexes and their multifaceted triggers.

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