Posterior Triangle Of The Neck

27 Questions | Total Attempts: 209

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Triangle Quizzes & Trivia

Questions and Answers
  • 1. 
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 2. 
        In repairing a damaged right subclavian artery, the surgeon notices and protects a large nerve passing around to the posterior surface of the artery. This nerve, which does not encircle the subclavian on the left side, is the:
    1. Phrenic
    2. Vagus
    3. Recurrent laryngeal
    4. Sympathetic trunk
    5. Ansa cervicalis
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 3. 
        A stab wound just above the left clavicle, lateral to the sternocleidomastoid muscle, may be life-threatening because of the possibility of injury to the:
    1. Brachial plexus
    2. Internal jugular vein
    3. Axillary artery
    4. Subclavian artery
    5. Thoracic duct
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 4. 
        A 27-year-old man who is a professional weight lifter comes to his physician complaining of recent weakness in his left arm and frequent tingling in his hand and fingers during exercise sessions which subsides with rest. He is diagnosed as having vasuclar insufficiency due to scalenus anticus syndrome and as a remedy it is decided to transect the anterior scalene muscle where it inserts on the first rib. During surgery, which structure in contact with the anterior surface of the muscle must the surgeon be careful of sparing?
    1. Inferior trunk of the brachial plexus
    2. Long thoracic nerve
    3. Phrenic nerve
    4. Sympathetic trunk
    5. Vagus nerve
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 5. 
        A 60-year-old man with a previous history of right carotid endarterectomy, comes to his physician complaining of light-headedness and dizziness whenever he uses his right hand vigorously. He is diagnosed as having subclavian steal syndrome due to an atherosclerotic plaque at the point where his subclavian artery branches from the brachiocephalic trunk. The cerebral insufficiency is the result of blood being stolen from which artery?
    1. External carotid
    2. Internal carotid
    3. Middle cerebral
    4. Thyrocervical trunk
    5. Vertebral
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 6. 
        A first year resident attempts to insert a central venous catheter into the heart by a subclavicular approach to the subclavian vein. Following the attempt, it is noted that the patient has difficulty breathing. What nervous structure lying immediately deep to the subclavian vein, as it crosses the anterior scalene muscle, may have been injured?
    1. External branch of the superior laryngeal nerve
    2. Phrenic nerve
    3. Recurrent laryngeal nerve
    4. Sympathetic trunk
    5. Vagus nerve
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 7. 
        Which statement is true of the internal jugular vein?
    1. It drains all of the thyroid gland on that side of the body
    2. It drains into the external jugular vein
    3. It is accompanied by the deep cervical chain of lymph nodes
    4. It lies deep to the prevertebral fascia
    5. It passes superficial to the sternocleidomastoid muscle
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 8. 
        Which structure lies immediately anterior to the right anterior scalene muscle at its costal attachment?
    1. Subclavian artery
    2. Subclavian vein
    3. Thoracic duct
    4. Thyrocervical trunk
    5. Vagus nerve
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 9. 
        An abscess was surgically removed from the middle of the posterior triangle on the right side. During recovery the patient noticed that her shoulder drooped and she could no longer raise her right hand above her head to brush her hair. Which nerve has been cut?
    1. Accessory (XI)
    2. Ansa cervicalis
    3. Facial (VII)
    4. Hypoglossal (XII)
    5. Suprascapular
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 10. 
        A surgeon doing a deep cervical lymph node dissection may encounter these structures upon the anterior surface of the anterior scalene muscle EXCEPT:
    1. Phrenic nerve
    2. Subclavian vein
    3. Middle trunk of the brachial plexus
    4. Transverse cervical artery
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 11. 
        The middle cervical sympathetic ganglion, recurrent laryngeal nerve, and parathyroid glands are all closely related with which blood vessel?
    1. Inferior thyroid artery
    2. Inferior thyroid vein
    3. Superior thyroid artery
    4. Superior thyroid vein
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 12. 
        During surgical procedures of the neck, structures within the carotid sheath can be retracted (pulled aside) as a unit. Which of the following structures would remain in place when the carotid sheath is retracted?
    1. common carotid artery
    2. cervical sympathetic trunk
    3. internal jugular vein
    4. internal carotid artery
    5. vagus nerve
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 13. 
        Which of the following nerves is derived from the dorsal primary rami of spinal nerves?
    1. great auricular
    2. greater occipital
    3. lesser occipital
    4. phrenic
    5. supraclavicular
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 14. 
        Which of the following hyoid muscles is an important landmark in both the anterior and posterior triangles of the neck?
    1. geniohyoid
    2. mylohyoid
    3. omohyoid
    4. sternohyoid
    5. stylohyoid
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 15. 
    Which of the following structures is not seen in the posterior triangle of the neck:
    1. Spinal accessory nerve
    2. Transverse cervical artery
    3. Middle trunk of brachial plexus
    4. Superior belly of omohyoid
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 16. 
    The following nerves are found in the posterior triangle of the neck a.       lesser occipital nerve b.       recurrent laryngeal nerve c.        spinal accessory nerve d.       all of the above e.        only a and c
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 17. 
    This (these) muscle(s) receive(s) motor fibers derived from the cervical plexus a.       respiratory diaphragm b.       levator scapulae c.        omohyoid d.       all of the above e.        a and b only
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 18. 
    The phrenic nerve: a.       is part of the cervical plexus b.       is derived from spinal segments C3, C4, and C5 c.        lies on the anterior scalene muscle d.       a and b only e.        a, b, and c
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 19. 
    The periosteum of the skull is called: a.       arachnoid b.       leptomeninx c.        pia matter d.       pericranium e.        epicranius
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 20. 
    The vertebral artery: a.       does not pass through the foramen transversium of the 1st cervical vertebrae b.       is found deep in the occipital triangle c.        is a branch of the maxillary artery d.       enters the vertebral foramen at the C6 level e.        does not have any branches
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 21. 
    The following structures on the left side of the root of the neck usually pass between the subclavian artery and the subclavian vein (or brachiocephalic vein): a.       anterior scalene b.       phrenic nerve c.        vagus nerve d.       all of the above e.        both a and b but not c
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 22. 
    On the right side of the root of the neck the costocervical trunk usually arises from the a.       first part of the subclavian artery b.       second part of the subclavian artery c.        third part of the subclavian artery d.       brachiocephalic artery e.        arch of the aorta
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 23. 
    On the left side of the root of the neck the thoracic duct turns laterally to pass between these two structures: a.       phrenic nerve and the prevertebral fascia b.       anterior and middle scalene muscles c.        anterior primary rami of C8 and T1 d.       vagus nerve and common carotid artery e.        common carotid artery and vertebral artery
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 24. 
    In the root of the neck the subclavian artery and subclavian vein are separated by the : a.       anterior scalene muscle b.       trunks of the brachial plexus c.        middle scalene muscle d.       all the above e.        a and b not c
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 25. 
    .The spinal accessory nerve passes through the posterior cervical triangle: a.       superficial to the platysma muscle b.       in the superficial cervical fascia c.        between the investing fascia and the prevertebral fascia d.       within the carotid sheath e.        deep to the prevertebral fascia
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E