Question
Posterior boundary of carotid triangle is:
| A. |
Superior belly of omohyoid
|
| B. |
Posterior belly of omohyoid
|
| C. |
Sternohyoid
|
| D. |
Sternocleidomastoid
|
Show Answer
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Correct Answer � D
Explanation
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|
Ans.D. Sternocleidomastoid
Borders and contents of the carotid triangle
| Borders |
Anterior – superior belly of omohyoid muscle Superior – stylohyoid and posterior belly of digastric muscles Posterior – anterior border of sternocleidomastoid muscle |
| Contents |
Arteries: common carotid, external carotid (and branches except maxillary, superficial temporal and posterior auricular), internal carotid artery (and sinus) Veins: internal jugular, common facial, lingual, superior thyroid, middle thyroid veins Nerves: vagus nerve (CN X), hypoglossal nerve (CN XII), part of sympathetic trunk |