Re: Lecture 59: Anterior Triangle - True False

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: Anterior Triangle Answers : 1. The ansa cervicalis is part of a somatic plexus whereas the ansa subclavia is part of an autonomic trunk. : - true : 2. The dorsal scapular nerve passes through the interscalene triangle. : - false ⇒ piercing middle scalene so no : 3. The phrenic nerve is anterior to the prevertebral fascia and posterior to the suprascapular artery. : - false ⇒ post. to prevertebral fascia : 4. The dorsal scapular nerve generally pierces the middle scalene and the long thoracic nerve pierces the posterior scalene. : - false ⇒ does not pierce : 5. The nerve to thyrohyoid travels, in part, with the hypoglossal nerve. : - true : 6. The nerve to genioglossus travels, in part, with the lingual nerve. : - false ⇒ no nerve to genioglossus : 7. The nerve to mylohyoid passes along the inferior surface of the mylohyoid between it and anterior belly of the digastric muscle. : - true : 8. The lingual nerve passes the medial border of the hyoglossus muscle whereas the lingual artery passes lateral to the hyoglossus muscle. : - false ⇒ nerve is superficial, artery is deep : 9. The glossopharyngeal nerve and the lingual artery each cross the lateral surface or the hyoglossus. : - false : 10. The internal laryngeal nerve passes through the thyrohyoid membrane with the superior laryngeal artery. : - true : 11. The internal laryngeal nerve is sensory (SVA GVA) only whereas the external laryngeal nerve is motor (SVE) only. : - false ⇒ internal is only GVA : 12. The vertebral artery generally first enters the transverse foramen of C7 whereas the vertebral vein first enters the transverse foramen of C6. : - false ⇒ opposite : 13. Hypertrophy of the scalene muscles may cause weakness in the upper extremity. : - true : 14. The omohyoid fascia is a specialization of prevertebral fascia. : - false ⇒ superficial cervical (if it exists??) : 15. The ansa cervicalis innervates the anterior, but not the posterior belly of the omohyoid. : - false ⇒ innervates both : 16. The nerve to mylohyoid innervates the posterior belly of the digastric but not the anterior belly. : - false ⇒ anterior belly : 17. The facial artery elaborates the submental artery. : - true : 18. The hypoglossal nerve hosts non-native fibers derived from the brachial plexus. : - false ⇒ cervical plexus : 19. The hypoglossal nerve passes immediately superior to the greater horn of the hyoid bone. : - true : 20. The cricothyroideus muscle, when fully contracted, lowers the pitch of the voice. : - false ⇒ raises pitch

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