Binary vascular system: Difference between revisions

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{{first pic|Binary vascular system.jpg|A scan taken by [[Kate Stewart]] reveals both [[the Doctor]]'s hearts. ([[TV]]: ''[[The Power of Three]]'')}}
{{first pic|Binary vascular system.jpg|A scan taken by [[Kate Stewart]] reveals both [[the Doctor]]'s hearts. ([[TV]]: ''[[The Power of Three]]'')}}
A '''binary vascular system''' was a type of circulatory system in which the blood vessels led to two [[heart]]s.
A '''binary vascular system''' was a type of circulatory system in which the blood vessels led to two [[heart]]s. [[Time Lord]]s had a binary vascular system. ([[TV]]: ''[[Spearhead from Space (TV story)|Spearhead from Space]]'', et al)


According to the [[Twelfth Doctor]], this led to extremely high [[blood pressure]], as compared to single-hearted species like [[human]]s. ([[TV]]: ''[[Smile (TV story)|Smile]]'')
== Characteristics ==
According to the [[Twelfth Doctor]], a binary vascular system led to extremely high [[blood pressure]] in comparison to single-hearted species like [[human]]s. ([[TV]]: ''[[Smile (TV story)|Smile]]'') The Dominator [[Rago]] once told [[Jamie McCrimmon]] that beings with single hearts were physically weaker than those with two hearts. ([[TV]]: ''[[The Dominators (TV story)|The Dominators]]'')


[[Chen-7]], also known as the 1 Day Plague, only affected species with binary vascular systems, such as [[Apalapucian]]s and [[Gallifreyan]]s. ([[TV]]: ''[[The Girl Who Waited]]'')
When the [[Fifth Doctor]] was stabbed in the chest, he survived because his [[human]], single-hearted attacker aimed for the spot where the human heart would be, but the Doctor's two hearts were in a slightly different location. ([[AUDIO]]: ''[[Son of the Dragon (audio story)|Son of the Dragon]]'') Scans of the [[Ninth Doctor]]'s hearts and later the [[Eleventh Doctor]]'s hearts showed that the hearts changed position during regeneration at some point. ([[TV]]: ''[[Dalek (TV story)|Dalek]]'', ''[[The Power of Three (TV story)|The Power of Three]]'')


[[Baris (The Doctor Trap)|Baris]], a fan of the [[Tenth Doctor]], had a second heart fitted to resemble him more. ([[PROSE]]: ''[[The Doctor Trap]]'')
[[File:A Shakespearean villain - Doctor Who - The Shakespeare Code - BBC|thumb|left|The [[Tenth Doctor]] survives a blow to his left heart because he had another. ([[TV]]: ''[[The Shakespeare Code (TV story)|The Shakespeare Code]]'')]]
A Gallifreyan could survive with only one heart, though he or she would be weakened greatly. ([[PROSE]]: ''[[Managra (novel)|Managra]]'', [[TV]]: ''[[The Shakespeare Code (TV story)|The Shakespeare Code]]'') When one of the [[Third Doctor]]'s hearts momentarily stopped, {{Delgado}} warned him he was "within an inch of dying." ([[TV]]: ''[[The Mind of Evil (TV story)|The Mind of Evil]]'') After the [[Eighth Doctor]]'s second heart was extracted from his chest, he was unable to process [[drug]]s or use his [[respiratory bypass system]], and to compensate, his remaining heart had to beat at a worryingly rapid pulse and was prone to fatigue. ([[PROSE]]: ''[[The Adventuress of Henrietta Street (novel)|The Adventuress of Henrietta Street]]'') During the [[Last Great Time War]], at least one Time Lord spy had her second heart removed from her body. ([[AUDIO]]: ''[[A Heart on Both Sides (audio story)|A Heart on Both Sides]]'') One of the [[Tenth Doctor]]'s hearts stopped beating while he was recovering from [[regeneration]], ([[TV]]: ''[[The Christmas Invasion (TV story)|The Christmas Invasion]]'') and the [[Eleventh Doctor]] claimed that he wouldn't survive much longer after one of his hearts was stopped by a [[Shakri cube]]. ([[TV]]: ''[[The Power of Three (TV story)|The Power of Three]]'')


Scans of the [[Ninth Doctor]]'s hearts and later the [[Eleventh Doctor]]'s hearts showed that the hearts changed position during regeneration at some point. ([[TV]]: ''[[Dalek]]'', ''[[The Power of Three]]'')
A Gallifreyan in [[cardiac arrest]] needed [[CPR]] on both hearts; otherwise, it would prove ineffective. ([[TV]]: ''[[Smith and Jones (TV story)|Smith and Jones]]'') [[Amy Pond]] used a [[defibrillator]] to restart one of the [[Eleventh Doctor]]'s hearts. ([[TV]]: ''[[The Power of Three (TV story)|The Power of Three]]'')


== Species with a binary vascular system ==
[[Cybermen (Pete's World)|Cybermen]] could detect a binary vascular system, prompting them to take the subject for further analysis, which at least delayed [[cyber-conversion]]. ([[TV]]: ''[[The Age of Steel (TV story)|The Age of Steel]]'')
In general, binary vascular systems were not common amongst humanoids.


[[Gallifreyan]]s were perhaps the most notable species known to possess a binary vascular systems. ([[TV]]: ''[[Spearhead from Space]]'', et. al)
== In Time Lords ==
[[File:Ninth Doctor's Binary Vascular System.jpg|thumb|right|The [[Ninth Doctor]]'s hearts, side by side. ([[TV]]: ''[[Dalek (TV story)|Dalek]]'')]]
A [[Time Lord]]'s [[regeneration|regenerative process]] was intimately linked to his or her hearts. Time Lords from [[Oldblood]] [[Great House|House]]s had only one heart until they regenerated for the first time; ([[PROSE]]: ''[[The Man in the Velvet Mask (novel)|The Man in the Velvet Mask]]'', ''[[Christmas on a Rational Planet (novel)|Christmas on a Rational Planet]]'', [[AUDIO]]: ''[[Time in Office (audio story)|Time in Office]]'') the [[First Doctor]] was seen to have one heart. ([[TV]]: ''[[The Edge of Destruction (TV story)|The Edge of Destruction]]'') In contrast, members of [[Newblood]] Houses were [[Loom]]ed with both hearts. ([[PROSE]]: ''[[Christmas on a Rational Planet (novel)|Christmas on a Rational Planet]]'')
 
Regeneration could be completely stopped — and the Time Lord therefore killed immediately, regardless of how many lives they had left — if both hearts were pierced or shot simultaneously. [[Andred]] and [[Serena]] were both killed in this manner, ([[AUDIO]]: ''[[Imperiatrix (audio story)|Imperiatrix]]'', [[PROSE]]: ''[[World Game (novel)|World Game]]'') while [[Cavis]] was permanently killed when, during regeneration, her enemy stabbed both her original heart and the place where the second one would grow. ([[PROSE]]: ''[[The Shadows of Avalon (novel)|The Shadows of Avalon]]'') {{Gomez}} recommended eight [[sniper]]s, with three trained on each of her hearts and two for her [[brain stem]], so that [[Clara Oswald]] could feel safe while speaking to her, noting that they'd have to "switch [her] off fast" before she could regenerate. ([[TV]]: ''[[The Magician's Apprentice (TV story)|The Magician's Apprentice]]'')
 
When [[Sabbath Dei|Sabbath]] implanted the [[Eighth Doctor]]'s second heart in his own chest, it endowed him with the ability to penetrate "[[deep time]]" (ie, travelling further away from [[Earth|his homeworld]] than should be possible), simultaneously creating a link between the Doctor and Sabbath that meant that the Doctor would survive grievous wounds as his heart was still beating in Sabbath, until Sabbath tore the heart out of his own chest, its 'death' allowing the Doctor to grow a new one. ([[PROSE]]: ''[[The Adventuress of Henrietta Street (novel)|The Adventuress of Henrietta Street]]'', ''[[Hope (novel)|Hope]]'', ''[[Camera Obscura (novel)|Camera Obscura]]'')


Being a version of the Time Lords from an alternate timeline, the [[Word Lord]]s also had a binary vascular system. ([[AUDIO]]: ''[[The Word Lord (audio story)|The Word Lord]]'')
== In other species ==
As Time Lords from an alternate timeline, the [[Word Lord]]s also had a binary vascular system. ([[AUDIO]]: ''[[The Word Lord (audio story)|The Word Lord]]'')


In the [[Mutter's Spiral]] [[galaxy]], a few [[monopod]] species and a drone species had two hearts. ([[PROSE]]: ''[[Tragedy Day (novel)|Tragedy Day]]'')
In the [[Mutter's Spiral]] [[galaxy]], a few [[monopod]] species and a drone species had two hearts. ([[PROSE]]: ''[[Tragedy Day (novel)|Tragedy Day]]'')
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The [[Second Doctor]] once encountered another double-hearted [[humanoid]] species called the [[Dulcian]]s. His own binary vascular system led the [[Dominator]]s to believe he was a Dulcian. ([[TV]]: ''[[The Dominators (TV story)|The Dominators]]'')
The [[Second Doctor]] once encountered another double-hearted [[humanoid]] species called the [[Dulcian]]s. His own binary vascular system led the [[Dominator]]s to believe he was a Dulcian. ([[TV]]: ''[[The Dominators (TV story)|The Dominators]]'')


Later, the [[Eighth Doctor]] met the [[Kulan]], another race whose overall stamina seemed to be improved over [[human]]s by their two hearts. ([[PROSE]]: ''[[Escape Velocity]]'')
Later, the [[Eighth Doctor]] met the [[Kulan]], another race whose overall stamina seemed to be improved over [[human]]s by their two hearts. ([[PROSE]]: ''[[Escape Velocity (novel)|Escape Velocity]]'')


The [[Kirithon]]s were genetically engineered by the [[Panjistri]] to have two hearts. ([[PROSE]]: ''[[Timewyrm: Apocalypse]]'')
The [[Kirithon]]s were genetically engineered by the [[Panjistri]] to have two hearts. ([[PROSE]]: ''[[Timewyrm: Apocalypse (novel)|Timewyrm: Apocalypse]]'')


The [[Apalapucian]]s, residents of [[Apalapucia]], had two hearts. ([[TV]]: ''[[The Girl Who Waited]]'')
The [[Apalapucian]]s, residents of [[Apalapucia]], had two hearts. [[Chen-7]], also known as the 1 Day Plague, only affected species with binary vascular systems. ([[TV]]: ''[[The Girl Who Waited (TV story)|The Girl Who Waited]]'')


The inhabitants of [[Skale]] had two hearts. ([[PROSE]]: ''[[Parallel 59 (novel)|Parallel 59]]'')
The inhabitants of [[Skale]] had two hearts. ([[PROSE]]: ''[[Parallel 59 (novel)|Parallel 59]]'')


Humans genetically introduced a second heart many [[Segment of Time|Segments]] prior to circa [[far future|10,000,000]]. ([[PROSE]]: ''[[The Ark (novelisation)|The Ark]]'')
When [[Henry van Statten]] performed an invasive scan of the [[Ninth Doctor]], he marvelled at the design and enthusiastically announced he was going to patent it. ([[TV]]: ''[[Dalek (TV story)|Dalek]]'') Humans genetically introduced a second heart many [[Segment of Time|Segments]] prior to circa [[far future|10,000,000]]. ([[PROSE]]: ''[[The Ark (novelisation)|The Ark]]'')
 
== Benefits ==
The Dominator [[Rago]] once told [[Jamie McCrimmon]] that beings with single hearts were physically weaker than those with two hearts. ([[TV]]: ''[[The Dominators]]'')
 
Similarly, when [[Henry van Statten]] performed an invasive scan of the [[Ninth Doctor]], he marvelled at the design and enthusiastically announced he was going to patent it. ([[TV]]: ''[[Dalek (TV story)|Dalek]]'')
 
[[File:A Shakespearean villain - Doctor Who - The Shakespeare Code - BBC|thumb|The [[Tenth Doctor]] survives a blow to his left heart because he had another. ([[TV]]: ''[[The Shakespeare Code (TV story)|The Shakespeare Code]]'')]]
A Gallifreyan could survive with only one heart, should the other be punctured, destroyed, or temporarily stop beating, though he or she would be weakened greatly. ([[PROSE]]: ''[[Managra (novel)|Managra]]'', [[TV]]: ''[[The Shakespeare Code]]'', ''[[The Power of Three]]'')
 
On one occasion, the Doctor's second heart was extracted from his chest and implanted in [[Sabbath]], leaving the Doctor no longer able to process drugs and deprived of his [[respiratory bypass system]] while otherwise capable of operating at a human level, although his remaining heart had to increase its usual rate of beats to a worryingly rapid pulse and he was prone to becoming far more fatigued than usual. At the same time, the heart that Sabbath had stolen endowed Sabbath with the ability to penetrate "deep time" (travelling further away from his homeworld than should be possible), simultaneously creating a link between the Doctor and Sabbath that meant that the Doctor would survive grievous wounds as his heart was still beating in Sabbath, until Sabbath tore the heart out of his own chest, its 'death' allowing the Doctor to grow a new one. ([[PROSE]]: ''[[The Adventuress of Henrietta Street]]'', ''[[Hope (novel)|Hope]]'', ''[[Camera Obscura]]'')
 
During the Time War, at least one Time Lord spy had her second heart removed from her body so that she could pose as the native of a planet near Gallifrey, but she was still vulnerable to [[Praxis gas]], and it is unclear if the loss of this heart had any other effects on her. ([[PROSE]]: ''[[A Heart on Both Sides (audio story)|A Heart on Both Sides]]'')
 
However, the [[Eleventh Doctor]] claimed that he wouldn't survive much longer after one of his hearts was stopped by a [[Shakri cube]]. A defibrillator was used to get both hearts working again, in this case. ([[TV]]: ''[[The Power of Three]]'')
 
A Gallifreyan in [[cardiac arrest]] would need [[CPR]] on ''both'' hearts. Otherwise, it would prove ineffective. ([[TV]]: ''[[Smith and Jones]]'')
 
A binary vascular system provided some level of protection from attack, in that single-hearted humanoids failed to aim correctly when attempting a close-range attack. The [[Fifth Doctor]], for instance, was once stabbed in the chest, but survived because his [[human]] attacker aimed for the spot where the human heart would be. Because the Doctor's two hearts were in a slightly different location, the attack was ineffectual. ([[AUDIO]]: ''[[Son of the Dragon]]'')
 
Even when stabbed in one heart, the second heart would allow the subject to survive the injury, although the subject would require aid to heal the damaged heart. ([[PROSE]]: ''[[Managra (novel)|Managra]]'')
 
[[Cybermen (Pete's World)|Cybermen from Pete's World]] could detect a binary vascular system, prompting them to take the subject [[Gallifreyan]] for further analysis, which at least delayed [[cyber-conversion]]. ([[TV]]: ''[[The Age of Steel (TV story)|The Age of Steel]]'')
 
== Hearts and regeneration ==
[[File:Ninth Doctor's Binary Vascular System.jpg|thumb|right|The [[Ninth Doctor]]'s hearts, side by side. ([[TV]]: ''[[Dalek (TV story)|Dalek]]'')]]
A [[Time Lord]]'s [[regeneration|regenerative process]] was intimately linked to his or her hearts. Some accounts held that Time Lords had only one heart until they regenerated for the first time. ([[PROSE]]: ''[[The Man in the Velvet Mask]], ''[[AUDIO]]'': [[Time in Office (audio story)|Time in Office]]'') Equally, regeneration could be completely stopped — and the Time Lord therefore killed immediately regardless of how many lives they had left — if both hearts were pierced or shot simultaneously. [[Andred]] and [[Serena]] were both killed in this manner, ([[AUDIO]]: ''[[Imperiatrix (audio story)|Imperiatrix]]'', [[PROSE]]: ''[[World Game]]'') while [[Cavis]] was permanently killed after she was decapitated in her first incarnation by her enemy stabbing her mid-regeneration in both her original heart and the place where the second one would grow. ([[PROSE]]: ''[[The Shadows of Avalon]]'')


{{Gomez}} recommended eight [[sniper]]s, with three trained on each of her hearts and two for her [[brain stem]], so that [[Clara Oswald]] could feel safe while speaking to her, noting that they'd have to "switch [her] off fast" before she could regenerate. ([[TV]]: ''[[The Magician's Apprentice (TV story)|The Magician's Apprentice]]'')
[[Baris (The Doctor Trap)|Baris]], a fan of the [[Tenth Doctor]], had a second heart fitted so he could resemble him more. ([[PROSE]]: ''[[The Doctor Trap (novel)|The Doctor Trap]]'')


[[es:Sistema vascular binario]]
[[es:Sistema vascular binario]]

Revision as of 22:20, 12 December 2017

A scan taken by Kate Stewart reveals both the Doctor's hearts. (TV: The Power of Three)

A binary vascular system was a type of circulatory system in which the blood vessels led to two hearts. Time Lords had a binary vascular system. (TV: Spearhead from Space, et al)

Characteristics

According to the Twelfth Doctor, a binary vascular system led to extremely high blood pressure in comparison to single-hearted species like humans. (TV: Smile) The Dominator Rago once told Jamie McCrimmon that beings with single hearts were physically weaker than those with two hearts. (TV: The Dominators)

When the Fifth Doctor was stabbed in the chest, he survived because his human, single-hearted attacker aimed for the spot where the human heart would be, but the Doctor's two hearts were in a slightly different location. (AUDIO: Son of the Dragon) Scans of the Ninth Doctor's hearts and later the Eleventh Doctor's hearts showed that the hearts changed position during regeneration at some point. (TV: Dalek, The Power of Three)

File:A Shakespearean villain - Doctor Who - The Shakespeare Code - BBC
The Tenth Doctor survives a blow to his left heart because he had another. (TV: The Shakespeare Code)

A Gallifreyan could survive with only one heart, though he or she would be weakened greatly. (PROSE: Managra, TV: The Shakespeare Code) When one of the Third Doctor's hearts momentarily stopped, the Master warned him he was "within an inch of dying." (TV: The Mind of Evil) After the Eighth Doctor's second heart was extracted from his chest, he was unable to process drugs or use his respiratory bypass system, and to compensate, his remaining heart had to beat at a worryingly rapid pulse and was prone to fatigue. (PROSE: The Adventuress of Henrietta Street) During the Last Great Time War, at least one Time Lord spy had her second heart removed from her body. (AUDIO: A Heart on Both Sides) One of the Tenth Doctor's hearts stopped beating while he was recovering from regeneration, (TV: The Christmas Invasion) and the Eleventh Doctor claimed that he wouldn't survive much longer after one of his hearts was stopped by a Shakri cube. (TV: The Power of Three)

A Gallifreyan in cardiac arrest needed CPR on both hearts; otherwise, it would prove ineffective. (TV: Smith and Jones) Amy Pond used a defibrillator to restart one of the Eleventh Doctor's hearts. (TV: The Power of Three)

Cybermen could detect a binary vascular system, prompting them to take the subject for further analysis, which at least delayed cyber-conversion. (TV: The Age of Steel)

In Time Lords

The Ninth Doctor's hearts, side by side. (TV: Dalek)

A Time Lord's regenerative process was intimately linked to his or her hearts. Time Lords from Oldblood Houses had only one heart until they regenerated for the first time; (PROSE: The Man in the Velvet Mask, Christmas on a Rational Planet, AUDIO: Time in Office) the First Doctor was seen to have one heart. (TV: The Edge of Destruction) In contrast, members of Newblood Houses were Loomed with both hearts. (PROSE: Christmas on a Rational Planet)

Regeneration could be completely stopped — and the Time Lord therefore killed immediately, regardless of how many lives they had left — if both hearts were pierced or shot simultaneously. Andred and Serena were both killed in this manner, (AUDIO: Imperiatrix, PROSE: World Game) while Cavis was permanently killed when, during regeneration, her enemy stabbed both her original heart and the place where the second one would grow. (PROSE: The Shadows of Avalon) Missy recommended eight snipers, with three trained on each of her hearts and two for her brain stem, so that Clara Oswald could feel safe while speaking to her, noting that they'd have to "switch [her] off fast" before she could regenerate. (TV: The Magician's Apprentice)

When Sabbath implanted the Eighth Doctor's second heart in his own chest, it endowed him with the ability to penetrate "deep time" (ie, travelling further away from his homeworld than should be possible), simultaneously creating a link between the Doctor and Sabbath that meant that the Doctor would survive grievous wounds as his heart was still beating in Sabbath, until Sabbath tore the heart out of his own chest, its 'death' allowing the Doctor to grow a new one. (PROSE: The Adventuress of Henrietta Street, Hope, Camera Obscura)

In other species

As Time Lords from an alternate timeline, the Word Lords also had a binary vascular system. (AUDIO: The Word Lord)

In the Mutter's Spiral galaxy, a few monopod species and a drone species had two hearts. (PROSE: Tragedy Day)

The Second Doctor once encountered another double-hearted humanoid species called the Dulcians. His own binary vascular system led the Dominators to believe he was a Dulcian. (TV: The Dominators)

Later, the Eighth Doctor met the Kulan, another race whose overall stamina seemed to be improved over humans by their two hearts. (PROSE: Escape Velocity)

The Kirithons were genetically engineered by the Panjistri to have two hearts. (PROSE: Timewyrm: Apocalypse)

The Apalapucians, residents of Apalapucia, had two hearts. Chen-7, also known as the 1 Day Plague, only affected species with binary vascular systems. (TV: The Girl Who Waited)

The inhabitants of Skale had two hearts. (PROSE: Parallel 59)

When Henry van Statten performed an invasive scan of the Ninth Doctor, he marvelled at the design and enthusiastically announced he was going to patent it. (TV: Dalek) Humans genetically introduced a second heart many Segments prior to circa 10,000,000. (PROSE: The Ark)

Baris, a fan of the Tenth Doctor, had a second heart fitted so he could resemble him more. (PROSE: The Doctor Trap)

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