MEDICAL
ARTERIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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anatomical limit for right common carotid
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anatomical limit for left common carotid
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Either A or B
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None of the above
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Detailed explanation-1: -Right Common Carotid: begins at the level of the sternoclavicular articulation and terminates at the level of the superior border of the thyroid cartilage. Left Common Carotid: begins at the level of the second costal cartilage and terminates at the level of the superior border of the thyroid cartilage.
Detailed explanation-2: -Normally, the CCA (common carotid artery) terminates into the external and internal carotid arteries at the superior border of the thyroid cartilage, which is at the intervertebral disk level between the third and fourth cervical vertebrae in the neck region.
Detailed explanation-3: -The arch of the aorta lies behind the lower part of the sternal manubrium. It begins behind the right border of the sternum at the level of the second rib cartilage, and extends dorsally to the left to reach the spine at the left of the body of the fourth thoracic vertebra [2].