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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.
Most human babies demonstrate an innate swimming or diving reflex from birth until the age of approximately six months, which are part of a wider range of primitive reflexes found in infants and babies, but not children, adolescents and adults. Other mammals also demonstrate this phenomenon (see mammalian diving 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 ...
Knee jerk or patellar reflex — a kick caused by striking the patellar tendon with a tendon hammer just below the patella, stimulating the L4 and L3 reflex arcs. Moro reflex , a primitive reflex — only in all infants up to 4 or 5 months of age: a sudden symmetric spreading of the arms, then unspreading and crying, caused by an unexpected ...
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.
Rob Doyle, a scuba diving pizza delivery man at an underwater hotel, doesn't just drive up to a front door and knock. He straps on scuba gear and dives deep beneath Key Largo, Florida, to deliver ...
Exactly 10 years ago today, I published a commentary defending the decision to publish the contents of the Sony hack in Variety, the publication where I then served as co-editor-in-chief. Listen ...
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 ...