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  Indian J Med Microbiol
 

Figure 9: (a) In this case, the external carotid artery is seen with a long parallel course to the wall of pharynx. In the upper most part, the external carotid artery is seen going away from the transducer. (b) The branch of the external carotid artery is seen going away from the probe in esophagus. It can be either the superior thyroid, facial, or lingual artery. (c) The internal carotid artery is more medial and more posterior to external carotid artery and has no branch. It curves away from the pharynx and enters the base of skull

Figure 9: (a) In this case, the external carotid artery is seen with a long parallel course to the wall of pharynx. In the upper most part, the external carotid artery is seen going away from the transducer. (b) The branch of the external carotid artery is seen going away from the probe in esophagus. It can be either the superior thyroid, facial, or lingual artery. (c) The internal carotid artery is more medial and more posterior to external carotid artery and has no branch. It curves away from the pharynx and enters the base of skull