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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.
The diving reflex is a response to immersion that overrides the basic homeostatic reflexes, and which is found in all air-breathing vertebrates. [ 6 ] [ 7 ] It optimizes respiration by preferentially distributing oxygen stores to the heart and brain which allows staying underwater for extended periods of time.
During the diving reflex, the infant's heart rate decreases by an average of 20%. [1] The glottis is spontaneously sealed off and the water entering the upper respiratory tract is diverted down the esophagus into the stomach. [6] The diving response has been shown to have an oxygen-conserving effect
Hering–Breuer reflex — is a reflex triggered to prevent over-inflation of the lung; Hoffmann's reflex — also known as the finger flexor reflex; middle finger and thumb response. Test can indicate both neurological damage and nerve regeneration; often combined with the Babinski reflex test. Jaw jerk reflex
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 ...
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Edmund Goodwyn, M.D. (1756–1829) was an English physician whose medical school graduation thesis contains several important contributions, [1] including the discovery of the diving reflex. [2] He advanced early important arguments in favor of artificial ventilation for the treatment of asphyxia over alternative resuscitation measures of the ...