Binary vascular system: Difference between revisions
m (Periodic cleanup per T:MOS BOT) |
m (changing over to new prefixes per Forum:Prefix simplification) |
||
| Line 1: | Line 1: | ||
[[File:2hearts.jpg|thumb|Dr. [[Henderson (Spearhead from Space)|Henderson]] points to the [[Third Doctor]]'s right heart. ([[ | [[File:2hearts.jpg|thumb|Dr. [[Henderson (Spearhead from Space)|Henderson]] points to the [[Third Doctor]]'s right heart. ([[TV]]: ''[[Spearhead from Space]]'')]] | ||
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. | ||
[[Chen-7]], also known as the 1 Day Plague, only affected species with binary vascular systems, such as [[Apalapucian]]s and [[Gallifreyan]]s. ([[ | [[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]]'') | ||
[[Baris (The Doctor Trap)|Baris]], a fan of the [[Tenth Doctor]], had a second heart fitted to resemble him more. ([[ | [[Baris (The Doctor Trap)|Baris]], a fan of the [[Tenth Doctor]], had a second heart fitted to resemble him more. ([[PROSE]]: ''[[The Doctor Trap]]'') | ||
== Species with a Binary Vascular System == | == Species with a Binary Vascular System == | ||
In general, binary vascular systems were not common amongst near-Humans. | In general, binary vascular systems were not common amongst near-Humans. | ||
* [[Gallifreyan]]s were perhaps the most notable species known to possess a binary vascular systems. ([[ | * [[Gallifreyan]]s were perhaps the most notable species known to possess a binary vascular systems. ([[TV]]: ''[[Spearhead from Space]]'', ''[[Robot (TV story)|Robot]]'', ''[[The Christmas Invasion]]'') | ||
* In the [[Mutter's Spiral]] [[galaxy]], a few [[monopod]] species and a drone species had two hearts. ([[ | * In the [[Mutter's Spiral]] [[galaxy]], a few [[monopod]] species and a drone species had two hearts. ([[PROSE]]: ''[[Tragedy Day (novel)|Tragedy Day]]'') | ||
* [[Second Doctor|The Doctor]] once encountered another double-hearted [[near-Human]] species called the [[Dulcian]]s. ([[ | * [[Second Doctor|The Doctor]] once encountered another double-hearted [[near-Human]] species called the [[Dulcian]]s. ([[TV]]: ''[[The Dominators]]'') | ||
* Later, [[Eighth Doctor|he]] met the [[Kulan]], another race whose overall stamina seemed to be improved over [[human]]s by their two hearts. ([[ | * Later, [[Eighth Doctor|he]] met the [[Kulan]], another race whose overall stamina seemed to be improved over [[human]]s by their two hearts. ([[PROSE]]: ''[[Escape Velocity]]'') | ||
* The [[Kirithon]]s were genetically engineered by the [[Panjistri]] to have two hearts. ([[ | * The [[Kirithon]]s were genetically engineered by the [[Panjistri]] to have two hearts. ([[PROSE]]: ''[[Timewyrm: Apocalypse]]'') | ||
* The [[Apalapucian]]s, residents of [[Apalapucia]], had two hearts. ([[ | * The [[Apalapucian]]s, residents of [[Apalapucia]], had two hearts. ([[TV]]:''[[The Girl Who Waited]]'') | ||
== Benefits == | == Benefits == | ||
The full implications of a binary vascular system were unclear. However, the Dulcian [[Rago]] once told [[Jamie McCrimmon]] that beings with single hearts were physically weaker than those with two hearts. ([[ | The full implications of a binary vascular system were unclear. However, the Dulcian [[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. Given van Statten's obsession with superior technology, this suggested that two hearts were, literally, better than one. ([[ | 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. Given van Statten's obsession with superior technology, this suggested that two hearts were, literally, better than one. ([[TV]]: ''[[Dalek (TV story)|Dalek]]'') | ||
A Gallifreyan could survive with only one heart, should the other be punctured or destroyed, though he or she would be weakened greatly. ([[ | A Gallifreyan could survive with only one heart, should the other be punctured or destroyed, though he or she would be weakened greatly. ([[PROSE]]: ''[[Managra]]'', [[PROSE]]: ''[[The Adventuress of Henrietta Street]]'', [[TV]]: ''[[The Shakespeare Code]]'') | ||
A Gallifreyan in cardiac arrest would need CPR on ''both'' hearts. ([[ | A Gallifreyan in cardiac arrest would need CPR on ''both'' hearts. ([[TV]]: ''[[Smith and Jones]]'') | ||
A binary vascular system provided some level of protection from attack, in that single-hearted near-Humans 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. ([[ | A binary vascular system provided some level of protection from attack, in that single-hearted near-Humans 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]]'') | ||
== Hearts and regeneration == | == Hearts and regeneration == | ||
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. ([[ | 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]]'') Equally, regeneration could be completely stopped — and the Time Lord therefore killed — if both hearts were pierced simultaneously. [[Andred]], for example, died in this way. ([[AUDIO]]: ''[[Imperiatrix (audio story)|Imperiatrix]]'') | ||
[[Category:Anatomy and physiology]] | [[Category:Anatomy and physiology]] | ||
Revision as of 13:24, 16 September 2012
A binary vascular system was a type of circulatory system in which the blood vessels led to two hearts.
Chen-7, also known as the 1 Day Plague, only affected species with binary vascular systems, such as Apalapucians and Gallifreyans. (TV: The Girl Who Waited)
Baris, a fan of the Tenth Doctor, had a second heart fitted to resemble him more. (PROSE: The Doctor Trap)
Species with a Binary Vascular System
In general, binary vascular systems were not common amongst near-Humans.
- Gallifreyans were perhaps the most notable species known to possess a binary vascular systems. (TV: Spearhead from Space, Robot, The Christmas Invasion)
- In the Mutter's Spiral galaxy, a few monopod species and a drone species had two hearts. (PROSE: Tragedy Day)
- The Doctor once encountered another double-hearted near-Human species called the Dulcians. (TV: The Dominators)
- Later, he 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. (TV:The Girl Who Waited)
Benefits
The full implications of a binary vascular system were unclear. However, the Dulcian 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. Given van Statten's obsession with superior technology, this suggested that two hearts were, literally, better than one. (TV: Dalek)
A Gallifreyan could survive with only one heart, should the other be punctured or destroyed, though he or she would be weakened greatly. (PROSE: Managra, PROSE: The Adventuress of Henrietta Street, TV: The Shakespeare Code)
A Gallifreyan in cardiac arrest would need CPR on both hearts. (TV: Smith and Jones)
A binary vascular system provided some level of protection from attack, in that single-hearted near-Humans 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)
Hearts and regeneration
A Time Lord's 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) Equally, regeneration could be completely stopped — and the Time Lord therefore killed — if both hearts were pierced simultaneously. Andred, for example, died in this way. (AUDIO: Imperiatrix)
