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Physiological responses to immersion of air-breathing vertebrates
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
Diving_reflex
Boundary of the chest cavity
prevent death. It achieves this through the activation of the mammalian diving reflex, which has three main properties. Other than bradycardia and peripheral
Thoracic_wall
Reflexive response to immersion in water
diving. Pediatricians also reported cases of cardiac arrest or respiratory failure. Most human babies demonstrate an innate swimming or diving reflex
Infant_swimming
Automatic, involuntary response to a stimulus
Anocutaneous reflex (S2-S4) Baroreflex Cough reflex Cremasteric reflex (L1-L2) Diving reflex Lazarus sign Muscular defense Photic sneeze reflex Scratch reflex Sneeze
Reflex
Physiological response to sudden exposure to cold
parasympathetic (due to the diving reflex) coactivation – may be responsible for some cold water immersion deaths. Gasp reflex and uncontrollable tachypnea
Cold_shock_response
Involuntary rapid nervous response in humans
Cushing reflex - triad of hypertension, bradycardia, and irregular breathing in response to elevated ICP. Diving reflex Enterogastric reflex Galant reflex —
List_of_reflexes
Action or movement due to the application of a sudden unexpected stimulus
of the startle response is a startle reflex reaction. The startle reflex is a brainstem reflectory reaction (reflex) that serves to protect vulnerable parts
Startle_response
Influences of the underwater environment on the physiology of human divers
in other mammals, including humans. Diving birds, such as penguins, have a similar diving reflex. The diving reflex is triggered specifically by chilling
Human physiology of underwater diving
Human_physiology_of_underwater_diving
British ocean liner (1907–1915)
from the Discovery Channel was also to be on hand. A dive team from Cork Sub Aqua Club, diving under licence, discovered 15,000 rounds of the .303 (7
RMS_Lusitania
Descending below the surface of the water to interact with the environment
in other mammals, including humans. Diving birds, such as penguins, have a similar diving reflex. The diving reflex is triggered by chilling the face and
Underwater_diving
Underwater diving without breathing apparatus
Freediving, free-diving, free diving, breath-hold diving, or skin diving is a mode of underwater diving that relies on breath-holding (apnea) until resurfacing
Freediving
Disorder caused by dissolved gases forming bubbles in tissues
Navy Diving Manual indicates that ascent rates greater than about 20 m/min (66 ft/min) when diving increase the chance of DCS, while recreational dive tables
Decompression_sickness
British science fiction writer (1917–2008)
writing, Clarke set up several diving-related ventures with his business partner Mike Wilson. In 1956, while scuba diving, Wilson and Clarke uncovered ruined
Arthur_C._Clarke
Australian conservationist (1962–2006)
Decompression trapeze Dive computer Diving bell Diving shot Diving stage Jersey upline Jonline Diving suit Atmospheric diving suit JIM suit Newtsuit
Steve_Irwin
English broadcaster and natural historian (born 1926)
on-screen presenter due to difficulties in speaking to a camera through diving apparatus, but asked Attenborough to narrate the films. The same team reunited
David_Attenborough
Self-propulsion of a person through water
diving reflex from newborn until approximately ten months. Other mammals also demonstrate this phenomenon (see mammalian diving reflex). The diving response
Swimming
Special forces unit of the British Army
different areas: Boat troop – specialists in maritime skills including diving using rebreathers, using kayaks (canoes) and rigid-hulled inflatable boats
Special_Air_Service
family of physiological reflex reactions—not necessarily pathological—which includes the oculocardiac reflex and the diving reflex. The renewed interest
Trigeminocardiac_reflex
Swimming underwater, breathing gas carried by the diver
Scuba diving is an underwater diving mode where divers use breathing equipment completely independent of a surface breathing gas supply, and therefore
Scuba_diving
Canadian actor
actor and urban planner. He is the artistic director of the Mammalian Diving Reflex theatre company, has written many plays including A Suicide-Site Guide
Darren_O'Donnell
Chamber for transporting divers vertically through the water
Diving bells are usually suspended by a cable, and lifted and lowered by a winch from a surface support platform. Unlike a submersible, the diving bell
Diving_bell
Semi-submersible offshore drilling rig
Sea, four divers were in a diving chamber system on the rig's deck that was connected by a trunk (a short passage) to a diving bell. The divers were Edwin
Byford_Dolphin
Japanese pearl divers
occupation. ama (海女) – a sea-diving fisherwoman ama (海士) – a sea-diving fisherman ama (海人), kaijin (海人) – a sea-diving fisherperson of either gender
Ama_(diving)
Underwater diving using self contained breathing gas recycling apparatus
Rebreather diving is underwater diving using diving rebreathers, a class of underwater breathing apparatus which recirculates the breathing gas exhaled
Rebreather_diving
Container to supply high pressure gas for diving operations
A diving cylinder or diving gas cylinder is a gas cylinder used to store and transport high-pressure gas used in diving operations. This may be breathing
Diving_cylinder
Underwater diving to a depth beyond the norm
Deep diving is underwater diving to a depth beyond the normal range accepted by the associated community. In some cases this is a prescribed limit established
Deep_diving
Garment or device designed to protect a diver from the underwater environment
A diving suit is a garment or device designed to protect a diver from the underwater environment. A diving suit may also incorporate a breathing gas supply
Diving_suit
Main nerve of the parasympathetic nervous system
a vagal maneuver: carotid sinus massage, Valsalva maneuver, or the diving reflex. Vagal maneuvers may be used to abort episodes of supraventricular tachycardia
Vagus_nerve
Techniques and procedures for safe decompression of divers
technical diving part 2: decompression from deep technical dives". Diving and Hyperbaric Medicine. 43 (2): 96–104. PMID 23813463. "How to Switch Your Diving Gas
Decompression_practice
Process of moving air in and out of the lungs
conscious breathing techniques may promote relaxation. Reflexes such as the diving reflex alter breathing and circulation during submersion to conserve oxygen
Breathing
2018 international rescue mission in Thailand
diving school in Phuket, contributed in cave diving capacity. Canada: Erik Brown, a dive instructor from Vancouver, participated on the cave diving team
Tham_Luang_cave_rescue
Copper helmet with rubberised canvas diving suit and weighted boots
Standard diving dress, also known as hard-hat or copper hat equipment, deep sea diving suit, or heavy gear, is a type of diving suit that was formerly
Standard_diving_dress
USMC deep reconnaissance unit
Springs, California. United States Marine Corps Combatant Diver Course – Navy Diving Salvage and Training Center, Naval Support Activity Panama City, Florida
United States Marine Corps Force Reconnaissance
United_States_Marine_Corps_Force_Reconnaissance
German filmmaker (1902–2003)
motion shots. Riefenstahl played with the idea of slow motion, underwater diving shots, extremely high and low shooting angles, panoramic aerial shots, and
Leni_Riefenstahl
Directional mass flow of oceanic water
Decompression trapeze Dive computer Diving bell Diving shot Diving stage Jersey upline Jonline Diving suit Atmospheric diving suit JIM suit Newtsuit
Ocean_current
Watch designed for underwater diving
A diving watch, also commonly referred to as a diver's or dive watch, is a watch designed for underwater diving that features, as a minimum, a water resistance
Diving_watch
Ship used as a floating base for professional diving projects
A diving support vessel is a ship that is used as a floating base for professional diving projects. Basic requirements are the ability to keep station
Diving_support_vessel
Respiratory impairment caused by submersion in liquid
(70 °F) triggers the diving reflex, common to air-breathing vertebrates, especially marine mammals such as whales and seals. This reflex protects the body
Drowning
Diving in water-filled caves
Cave diving is underwater diving in water-filled caves. It may be done as an extreme sport, a way of exploring flooded caves for scientific investigation
Cave_diving
Crewed full ocean depth rated submersible
Challenger Deep Timeline of diving technology – Chronological list of notable events in the history of underwater diving equipment Struwe, Jonathan (2019-05-04)
DSV_Limiting_Factor
Scuba cave diving incident in South Australia
The 1973 Mount Gambier cave diving accident was a scuba diving incident on 28 May 1973 at a flooded sinkhole known as "The Shaft" near Mount Gambier in
1973 Mount Gambier cave diving accident
1973_Mount_Gambier_cave_diving_accident
Articulated pressure-resistant anthropomorphic housing for an underwater diver
An atmospheric diving suit (ADS), atmospheric pressure diving suit or single atmosphere diving suit is a small one-person articulated submersible which
Atmospheric_diving_suit
Techniques requiring specific equipment and procedures
A mode of diving, or diving mode, is a particular way to dive underwater that requires specific equipment, procedures and techniques, and may expose the
Modes_of_underwater_diving
2006 animal encounter accident
Underwater diving Diving activities Diving modes Atmospheric pressure diving Freediving Saturation diving Scuba diving Snorkeling Surface oriented diving Surface-supplied
Death_of_Steve_Irwin
Group of people working together to enhance dive safety and achieve a task
A diving team is a group of people who work together to conduct a diving operation. A characteristic of professional diving is the specification for minimum
Diving_team
Closed or semi-closed circuit scuba
technical diving decompression computers for rebreather diving, and some rebreather manufacturers use dive computer hardware repackaged by dive computer
Diving_rebreather
Severely deficient supply of oxygen
Orme, Brown, Green & Longman. Elsner R (September 1989). "Perspectives in diving and asphyxia". Undersea Biomedical Research. 16 (5): 339–44. PMID 2678664
Asphyxia
Diving incident in the Maldives
The 2026 Dhekunu Kandu cave diving incident was a cave diving incident that occurred on 14 May 2026 at the Dhekunu Kandu cave, also known as the Devana
2026 Dhekunu Kandu cave diving incident
2026_Dhekunu_Kandu_cave_diving_incident
Diving beyond the scope of recreational diving
Technical diving (also referred to as tec diving or tech diving) is scuba diving that exceeds the agency-specified limits of recreational diving for non-professional
Technical_diving
Gas used for human respiration
decompression, reducing nitrogen narcosis or allowing safer deep diving. The techniques used to fill diving cylinders with gases other than air or pure oxygen are
Breathing_gas
Equipment for controlling the buoyancy of a diver
inflatable goods Low impact diving – Scuba diving that has minimal environmental effect Scuba skills – Skills required to scuba-dive safely There are other
Buoyancy_compensator_(diving)
Organ system for circulating blood in animals
Underwater vision Underwater computer vision Diving physiology Blood shift Cold shock response Diving reflex Equivalent narcotic depth Maximum operating
Circulatory_system
Pirate Blackbeard's ship
Southerly, C.; Gillman-Bryan, J. (2003). "Diving on the Queen Anne's Revenge". In Norton, S. F. (ed.). Diving for Science. American Academy of Underwater
Queen_Anne's_Revenge
American astronaut (born 1975)
Decompression trapeze Dive computer Diving bell Diving shot Diving stage Jersey upline Jonline Diving suit Atmospheric diving suit JIM suit Newtsuit
Reid_Wiseman
International theatre festival in London
Mammalian Diving Reflex as part of the Super UpLIFTers project. This is a five-year partnership between LIFT, the Mammalian Diving Reflex and two Tottenham
London International Festival of Theatre
London_International_Festival_of_Theatre
Origins and development of diving using breathing gas carried by the diver
The history of scuba diving is closely linked with the history of diving equipment. By the turn of the twentieth century, two basic architectures for
History_of_scuba_diving
Outcrop of rock in the sea formed by the growth and deposit of stony coral skeletons
Underwater vision Underwater computer vision Diving physiology Blood shift Cold shock response Diving reflex Equivalent narcotic depth Maximum operating
Coral_reef
Watertight clothing that seals the wearer from cold and hazardous liquids
suits used for diving, for safety, comfort and convenience of use. Gas inflation and exhaust equipment are generally used for diving applications, primarily
Dry_suit
Submersible that traveled to the Challenger Deep
developer team members hail from Sydney's cave-diving fraternity including Allum himself with many years of cave-diving experience.[citation needed] Working in
Deepsea_Challenger
Deaths occurring while scuba diving or as a consequence of scuba diving
Scuba diving fatalities are deaths occurring while scuba diving or as a consequence of scuba diving. The risks of dying during recreational, scientific
Scuba_diving_fatalities
Action used to slow down the heart rate by stimulating the vagus nerve
test Cold water immersion (diving reflex) Eyeball pressure (also known as the oculocardiac reflex or Aschner-Dagnini reflex) Other less clinically useful
Vagal_maneuver
Italian freediver (born 1992)
Dynamic Apnea with monofin – Diving as far as possible with the use of a monofin. DYNB = Dynamic Apnea with fins – Diving as far as possible with the use
Alessia_Zecchini
Female divers of Jeju, South Korea
a haenyeo consist of a wetsuit, diving mask, fins, gloves, chest weights (or freediving weight belts, to assist diving), an L-shaped weeding hoe, and a
Haenyeo
Diving mode and decompression technique
Saturation diving is an ambient pressure diving technique which allows a diver to remain at working depth for extended periods during which the body tissues
Saturation_diving
Professional diving on industrial projects
Commercial diving may be considered an application of professional diving where the diver engages in underwater work for industrial, construction, engineering
Commercial_diving
Hyperbaric pressure vessel for human occupancy used in diving operations
atmospheric pressure are provided for diving-related applications such as saturation diving and diver decompression, and non-diving medical applications such as
Diving_chamber
Town in Suffolk, England
Goodwyn (1756–1832), physician born in Framlingham, who discovered the diving reflex Robert Hindes Groome (1810–1889), composer, author and cleric, born
Framlingham
Tactical scuba diver
call themselves "combat divers" or similar. Tactical diving is a branch of professional diving carried out by armed forces and tactical units. They may
Frogman
Tabulated data to facilitate safe diving ascents
constant oxygen fraction diving and for constant oxygen partial pressure diving, for repetitive dives, and for saturation diving. No-stop tables are also
Decompression_tables
French free diver (1927–2001)
dive off Elba, Italy. Tests showed that during this dive his heart beat decreased from 60 to 27 beats/min, an aspect of the mammalian diving reflex,
Jacques_Mayol
Change in sea level due to gravity
Decompression trapeze Dive computer Diving bell Diving shot Diving stage Jersey upline Jonline Diving suit Atmospheric diving suit JIM suit Newtsuit
Tide
Pressure reduction and its effects during ascent from depth
atmospheric pressure when free-diving or snorkelling will not usually need to decompress. Divers using an atmospheric diving suit do not need to decompress
Decompression_(diving)
Underwater diving breathing gas supplied from the surface
Surface-supplied diving is a mode of underwater diving using equipment supplied with breathing gas through a diver's umbilical from the surface, either
Surface-supplied_diving
Instinctive reaction that occurs in humans when close to drowning
swim clothed (resulting in exhaustion) or striking underwater objects when diving. The common instinctual drowning behaviors were identified by Frank Pia
Instinctive_drowning_response
Fatal offshore diving accident in Scotland, 1979
routine dive in the East Shetland Basin of the North Sea, the diving bell of the diving support vessel MS Wildrake became separated from its main lift
Wildrake_diving_accident
Suspension of breathing
person is immersed in water, physiological changes due to the mammalian diving reflex enable somewhat longer tolerance of apnea even in untrained persons
Apnea
Recreational diver training and certification agency
The Professional Association of Diving Instructors (PADI) is a recreational diving membership and diver training organization founded in 1966 by John Cronin
Professional Association of Diving Instructors
Professional_Association_of_Diving_Instructors
Portable apparatus to recycle breathing gas
sets including rebreathers) NOAA Diving Program (U.S.) (28 Feb 2001). Joiner, James T. (ed.). NOAA Diving Manual, Diving for Science and Technology (4th ed
Rebreather
Facility for supporting saturation diving projects
A saturation diving system is the combined and installed equipment required to support a saturation diving operation. It may be an underwater habitat
Saturation_diving_system
Australian technical diver (1954–2005)
Steven Shaw and Lisa (née Shaw) Moyers. "Deep Cave Diving with Dave Shaw". Deep Cave. "Scuba Diving World Records - Deepest Longest - Dave Shaw - Nuno
Dave_Shaw
Diagnosis, treatment and prevention of disorders caused by underwater diving
significant diving-related illnesses, decompression sickness and arterial gas embolism. Diving medicine deals with medical research on issues of diving, the
Diving_medicine
U.S. Navy's special operations force
transitioned from the combat fatigues of the NCDUs to trunks, swimfins, diving masks and Ka-bars. The men trained by the OSS had brought their swimfins
United_States_Navy_SEALs
Canadian astronaut (born 1959)
Decompression trapeze Dive computer Diving bell Diving shot Diving stage Jersey upline Jonline Diving suit Atmospheric diving suit JIM suit Newtsuit
Chris_Hadfield
Irish safety freediver (1977-2017)
Andrukajtis, Tomasz (2017-07-23). "Freediver Stephen Keenan Died While Diving In Dahab - DIVERS24.COM". Retrieved 2023-10-27. Feehan, Conor (2017-07-25)
Stephen_Keenan
Underwater diving where divers are paid for their work
Professional diving is underwater diving where the divers are paid for their work. Occupational diving has a similar meaning and applications. The procedures
Professional_diving
Australian anesthesiologist and cave diver
Achievement" award at the Australian technical diving conference Oztek, to mark his exceptional contributions to cave diving exploration, in 2017 he was awarded
Richard_Harris_(anaesthetist)
American journalist
nonfiction book focused on the human connection to the ocean – mammalian diving reflex, electroreception, magnetoreception, abiogenesis. The book, Deep: Freediving
James_Nestor
Powered device for diver mobility and range extension
decompression obligation, which depend on the dive profile. Typical uses include cave diving and technical diving where the vehicles help move bulky equipment
Diver_propulsion_vehicle
American engineer, vintner, and former NASA astronaut
Decompression trapeze Dive computer Diving bell Diving shot Diving stage Jersey upline Jonline Diving suit Atmospheric diving suit JIM suit Newtsuit
José_M._Hernández
Ballast carried to counteract buoyancy
A diving weighting system is ballast weight added to a diver or diving equipment to counteract excess buoyancy. They may be used by divers or on equipment
Diving_weighting_system
Skills required to scuba-dive safely
Diving instructors affiliated to a diving certification agency may work independently, or through a university, a dive club, a dive school or a dive shop
Scuba_skills
Instrument to calculate decompression status in real time
diving operations. There is no reason to assume that they cannot be valuable tools for commercial diving operations, especially on multi-level dives.
Dive_computer
Canadian astronaut (born 1976)
Decompression trapeze Dive computer Diving bell Diving shot Diving stage Jersey upline Jonline Diving suit Atmospheric diving suit JIM suit Newtsuit
Jeremy_Hansen
US government scientific agency
Aviation Operations is responsible for the fleet of NOAA ships, aircraft, and diving operations. It is the largest research fleet in the Federal government.
National Oceanic and Atmospheric Administration
National_Oceanic_and_Atmospheric_Administration
Hunting for fish using a spear
precludes catch and release. Spearfishing may be done using free-diving, snorkelling, or scuba diving techniques, but spearfishing while using scuba equipment
Spearfishing
Breathing gas consisting of oxygen, helium and nitrogen
deep commercial diving, during the deep phase of dives carried out using technical diving techniques, and in advanced recreational diving. The helium is
Trimix_(breathing_gas)
Indian Navy special operations force
Warfare Tactical Training Centre. For combat diving training, the commandos are sent to the Naval Diving School in Kochi. There are plans to move the
MARCOS
Mechanism that controls the pressure of a breathing gas supply for diving
A diving regulator or underwater diving regulator is a pressure regulator that controls the pressure of breathing gas for underwater diving. The most
Diving_regulator
Diving for the purpose of leisure and enjoyment
Recreational diving or sport diving is diving for the purpose of leisure and enjoyment, usually when using scuba equipment. The term "recreational diving" may
Recreational_diving
Equipment used to facilitate underwater diving
Diving equipment, or underwater diving equipment, is equipment used by underwater divers to make diving activities possible, easier, safer and/or more
Diving_equipment
DIVING REFLEX
DIVING REFLEX
Boy/Male
American, British, English, Irish
Friend of the Sea; Friend; Variant of Irving; Green; Fresh Water; Handsome
Girl/Female
Celtic
Divine one.
Girl/Female
English French American
Divine.
Girl/Female
Latin
Divine one.
Surname or Lastname
Irish
Irish : reduced Anglicized form of either of two Gaelic names, Ó DuibhÃn ‘descendant of DuibhÃn’, a byname meaning ‘little black one’, or Ó DaimhÃn ‘descendant of DaimhÃn’, a byname meaning ‘fawn’, ‘little stag’. These are attenuated versions of Ó Dubháin and Ó Damháin, and are the phonetic origin of Anglicizations with an internal v (as opposed to w, as in Dewan, or monosyllabic forms with an o or u) (see Doane).English and French : nickname, of literal or ironic application, from Middle English, Old French devin, divin ‘excellent’, ‘perfect’ (Latin divinus ‘divine’).
Boy/Male
American, Anglo, Australian, British, Celtic, Christian, Danish, Dutch, English, French, Gaelic, German, Gujarati, Hindu, Indian, Irish, Kannada, Latin, Marathi, Modern, Sanskrit, Tamil, Telugu
Poet; And Place Name; Divine; Perfect; Bard; Resembling of God
Boy/Male
French, German, Greek, Portuguese, Spanish
Divine; Ever-living; Immortal
Female
English
English name based on the vocabulary word divine, DIVINA means "goddess-like" or "from heaven."
Girl/Female
American, Australian, British, English, French, Gaelic, Irish
Poet; Divine
Girl/Female
Hindu, Indian, Tamil
Divine Power; Lovely
Boy/Male
French, German, Greek, Latin
Ever-living; Divine; Immortal
Girl/Female
Hindu, Indian, Sanskrit
Divine; The Heaven
Girl/Female
Indian
Divine power
Girl/Female
Indian
Divine
Girl/Female
Latin
Divine one.
Female
English
 Feminine form of English Davin, DAVINA means "little black one." Compare with another form of Davina.
Boy/Male
Gujarati, Hindu, Indian, Kannada
Divine Body
Surname or Lastname
English
English : perhaps be a nickname from Middle English daring ‘trembling’, ‘crouching or transfixed with fear’.
Boy/Male
Hindu
Divine, Part of God
Male
English
 Alternate spelling of the English surname Deeming, DEMING means "act of judging." Compare with another form of Deming.
DIVING REFLEX
DIVING REFLEX
Girl/Female
English, Indian
Mother of Jesus
Girl/Female
Hindu
Night of the full Moon
Girl/Female
Arabic, Muslim
Lucky
Boy/Male
German Scottish
Red. Surname.
Male
Hebrew
(×Ö²×–Ö·× Ö°×™Ö¸×”) Hebrew name AZANYAH means "God hears." In the bible, this is the name of the father of Jeshua.
Girl/Female
Indian
Beautiful woman
Girl/Female
Hindu, Indian, Tamil
One with Beautiful Eyes
Girl/Female
Tamil
Jhanavi | ஜஹாநவீ, ஜஹாநவீÂ
Ganga the river
Boy/Male
Hindu, Indian, Marathi, Tamil
Cute Pearl; Precious Pearl
Girl/Female
Gujarati, Hindu, Indian, Kannada, Marathi, Sindhi, Tamil, Telugu
Surrounded by Glory; Shining; Powerful
DIVING REFLEX
DIVING REFLEX
DIVING REFLEX
DIVING REFLEX
DIVING REFLEX
a.
Proceeding from God; as, divine judgments.
a.
Having great force of impulse; as, a driving wind or storm.
a.
Appropriated to God, or celebrating his praise; religious; pious; holy; as, divine service; divine songs; divine worship.
a.
Giving life or spirit; having power to give life; inspiriting; invigorating.
p. pr. & vb. n.
of Dive
a.
That dives or is used or diving.
n.
Manner of life; as, riotous living; penurious living; earnest living.
p. pr. & vb. n.
of Divine
n.
An exposure to air, or to a fire, for warming, drying, etc.; as, the airing of linen, or of a room.
a.
Of or belonging to God; as, divine perfections; the divine will.
a.
Communicating force; impelling; as, a driving shaft.
v. t.
To render divine; to deify.
a.
Bold; fearless; adventurous; as, daring spirits.
n.
Boldness; fearlessness; adventurousness; also, a daring act.
imp. & p. p.
of Divine
n.
Power of continuing life; the act of living, or living comfortably.
a.
That divines; for divining.
a.
Adapted or tending to exhaust moisture; as, a drying wind or day; a drying room.
v. i.
To conjecture or guess; as, to divine rightly.
p. pr. & vb. n.
of Divide