The left and right common carotid arteries are the two arteries leading to the head and supply the brain with blood and oxygen. Shortly after they split off the highest point of the aorta, each splits into two branches - the left and right external carotid artery and the internal carotic artery. A blockage in one of these arteries leads to a stroke.
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| - The left and right common carotid arteries are the two arteries leading to the head and supply the brain with blood and oxygen. Shortly after they split off the highest point of the aorta, each splits into two branches - the left and right external carotid artery and the internal carotic artery. A blockage in one of these arteries leads to a stroke.
- When Khan Noonien Singh was revived from suspended animation in 2267, he held a scalpel to Leonard McCoy's throat and demanded to know where he was. McCoy refused to answer, but offered a suggestion to Khan, that it would be most effective to slice the carotid just under his ear. (TOS: "Space Seed" ) In 2371, The Doctor treated Fred Noonan’s lacerated carotid artery, caused by weapons fire. (VOY: "The 37's") The Jem'Hadar took ketracel-white directly into their carotid artery via a supply tube on their neck. (DS9: "The Abandoned")
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| - When Khan Noonien Singh was revived from suspended animation in 2267, he held a scalpel to Leonard McCoy's throat and demanded to know where he was. McCoy refused to answer, but offered a suggestion to Khan, that it would be most effective to slice the carotid just under his ear. (TOS: "Space Seed" ) In 2371, The Doctor treated Fred Noonan’s lacerated carotid artery, caused by weapons fire. (VOY: "The 37's") The Jem'Hadar took ketracel-white directly into their carotid artery via a supply tube on their neck. (DS9: "The Abandoned") When Harry Kim was attacked by a member of Species 8472 in 2374, The Doctor injected nanoprobes through his carotid artery. (VOY: "Scorpion, Part II") While Chakotay was hallucinating when the USS Voyager was trapped in chaotic space in 2375, a vision of The Doctor told him that a hard blow to the neck from an opponent in a boxing match would sever the carotid artery and cut off blood flow to the brain. (VOY: "The Fight")
- The left and right common carotid arteries are the two arteries leading to the head and supply the brain with blood and oxygen. Shortly after they split off the highest point of the aorta, each splits into two branches - the left and right external carotid artery and the internal carotic artery. A blockage in one of these arteries leads to a stroke. The left common carotid travels through the chest before entering the neck. The right common carotid starts in the neck. Because both lie close to the skin, they are useful for checking the pulse of a patient who is unconscious or has no pulse in the extremities.
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