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Diving reflex in a human baby. The diving reflex, also known as the diving response and mammalian diving reflex, is a set of physiological responses to immersion that overrides the basic homeostatic reflexes, and is found in all air-breathing vertebrates studied to date.
Human physiology of underwater diving is the physiological influences of the underwater environment on the human diver, and adaptations to operating underwater, both during breath-hold dives and while breathing at ambient pressure from a suitable breathing gas supply.
The diving reflex is more pronounced in aquatic mammals and is thought to have originated as a way to conserve oxygen and enhance the ability to stay underwater for longer periods. Key components of the diving reflex include: Bradycardia: The heart rate decreases significantly when the face is exposed to cold water. This helps to conserve ...
The reason: the "diving reflex," in which the body slows its heart rate and metabolism in order to conserve oxygen and energy when submerged in cold water. The pulse rate in an untrained diver ...
Physiological response to water immersion – Also known as the diving response and mammalian diving reflex; Physiology of decompression – The physiological basis for decompression theory and practice; Physiology of diving adaptations – Adaptations of marine vertebrates to diving
The physiology of underwater diving is the physiological adaptations to diving of air-breathing vertebrates that have returned to the ocean from terrestrial lineages. They are a diverse group that include sea snakes, sea turtles, the marine iguana, saltwater crocodiles, penguins, pinnipeds, cetaceans, sea otters, manatees and dugongs.
The diving reflex is triggered by chilling the face and holding the breath. [5] [9] ... The physiology relates the physics to the effects on the human body, ...
mammalian diving reflex. Also: "diving response" A reflex response to breathhold and chilling of the face diving response expressed by the cardiovascular system, which exhibits hypertension, bradycardia, oxygen conservation, arrhythmias, and contraction of the spleen. [77] manifold. See: twin cylinder manifold. manifold (breathing gas supply)