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Re: Lecture 59: Anterior Triangle - True False

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Posted by lae2 on December 09, 2021 at 19:53:44:

In Reply to: Re: Lecture 59: Anterior Triangle - True False posted by Alexis on December 08, 2021 at 22:30:05:

: Anterior Triangle Answers
: 1. The ansa cervicalis is part of a somatic plexus whereas the ansa subclavia is part of an autonomic trunk.

: - true. Correct.

: 2. The dorsal scapular nerve passes through the interscalene triangle.

: - false ⇒ piercing middle scalene so no. Correct.

: 3. The phrenic nerve is anterior to the prevertebral fascia and posterior to the suprascapular artery.

: - false ⇒ post. to prevertebral fascia. Correct.

: 4. The dorsal scapular nerve generally pierces the middle scalene and the long thoracic nerve pierces the posterior scalene.

: - false ⇒ does not pierce. Correct. But... Both pass through the middle scalene.

: 5. The nerve to thyrohyoid travels, in part, with the hypoglossal nerve.

: - true. Correct.

: 6. The nerve to genioglossus travels, in part, with the lingual nerve.

: - false ⇒ no nerve to genioglossus. Correct.

: 7. The nerve to mylohyoid passes along the inferior surface of the mylohyoid between it and anterior belly of the digastric muscle.

: - true. Correct.

: 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. Correct.

: 9. The glossopharyngeal nerve and the lingual artery each cross the lateral surface or the hyoglossus.

: - false. Correct.

: 10. The internal laryngeal nerve passes through the thyrohyoid membrane with the superior laryngeal artery.

: - true. Correct.

: 11. The internal laryngeal nerve is sensory (SVA GVA) only whereas the external laryngeal nerve is motor (SVE) only.

: - false ⇒ internal is only GVA. Correct.

: 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. Correct.

: 13. Hypertrophy of the scalene muscles may cause weakness in the upper extremity.

: - true. Correct.

: 14. The omohyoid fascia is a specialization of prevertebral fascia.

: - false ⇒ superficial cervical (if it exists??). Correct. Forms the sling for the intertendon to the clavicle.

: 15. The ansa cervicalis innervates the anterior, but not the posterior belly of the omohyoid.

: - false ⇒ innervates both. Correct.

: 16. The nerve to mylohyoid innervates the posterior belly of the digastric but not the anterior belly.

: - false ⇒ anterior belly. Correct.

: 17. The facial artery elaborates the submental artery.

: - true. Correct.

: 18. The hypoglossal nerve hosts non-native fibers derived from the brachial plexus.

: - false ⇒ cervical plexus. Correct.

: 19. The hypoglossal nerve passes immediately superior to the greater horn of the hyoid bone.

: - true. Correct.

: 20. The cricothyroideus muscle, when fully contracted, lowers the pitch of the voice.

: - false ⇒ raises pitch. Correct.




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