Anatomy Carotid Sheath, Pharynx, Larynx

13 Questions | By BLACKMD | Updated: Mar 20, 2022 | Attempts: 171

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1.

Following thyroid surgery, it was noted that a patient frequently aspirated fluid into her lungs. Upon examination it was determined that the area of the piriform recess above the vocal fold of the larynx was numb. What nerve may have been injured?
- A.
  
  External branch of the superior pharyngeal
- B.
  
  Hypoglossal
- C.
  
  Internal branch of the superior laryngeal
- D.
  
  Lingual
- E.
  
  Recurrent laryngeal
2.

The laryngeal muscle most responsible for stretching (elongating) the vocal ligament is the :
- A.
  
  Posterior cricoarytenoid
- B.
  
  Lateral cricoarytenoid
- C.
  
  Thyroarytenoid
- D.
  
  Arytenoid
- E.
  
  Cricothyroid
3.

The muscle most responsible for the abduction of the vocal folds is the :
- A.
  
  Arytenoid
- B.
  
  Cricothyroid
- C.
  
  Lateral cricoarytenoid
- D.
  
  Posterior cricoarytenoid
- E.
  
  Thyroarytenoid
4.

The nerve that innervates all but one muscle of larynx is the:
- A.
  
  Glossopharyngeal nerve, pharyngeal branch
- B.
  
  Inferior laryngeal nerve
- C.
  
  Superior laryngeal nerve, external branch
- D.
  
  Superior laryngeal nerve, internal branch
- E.
  
  Thyrohyoid nerve
5.

The vocalis muscle is most responsible for the fine control of phonation because of its attachment into the:
- A.
  
  Arytenoid cartilage
- B.
  
  Cricoid cartilage
- C.
  
  Thyroid cartilage
- D.
  
  Vestibular ligament
- E.
  
  Vocal ligament
6.

The constrictor muscles of the pharynx receive their motor nerve supply from the:
- A.
  
  Glossopharyngeal nerve
- B.
  
  Hypoglossal nerve
- C.
  
  Spinal accessory nerve
- D.
  
  Sympathetic trunk
- E.
  
  Vagus nerve
7.

Twenty-four hours following a partial thyroidectomy where the inferior thyroid artery was also ligated (tied off), the patient now spoke with a hoarse voice (whisper), and had difficulty in breathing. Which nerve was injured?
- A.
  
  Internal branch of superior laryngeal
- B.
  
  Ansa cervicalis
- C.
  
  Ansa subclavia
- D.
  
  Recurrent laryngeal
- E.
  
  External branch of superior laryngeal
8.

In performing a thyroidectomy, caution should be exercised when ligating (tying) the inferior thyroid artery, as it lies in a very close relationship to which nerve?
- A.
  
  Ansa cervicalis
- B.
  
  Hypoglossal
- C.
  
  Phrenic
- D.
  
  Recurrent laryngeal
- E.
  
  Vagus
9.

A 60-year-old man has occasional blackouts and light-headedness. Studies reveal atherosclerotic plaques within the common carotid arteries and the bifurcation of the vessels. A carotid endartectomy is undertaken. Which nerve bundle running vertically within the carotid sheath must the surgeon be careful not to injure?
- A.
  
  Accessory
- B.
  
  Cervical sympathetic trunk
- C.
  
  Glossopharyngeal
- D.
  
  Hypoglossal
- E.
  
  Vagus
10.

A 55-year-old woman has difficulty swallowing and frequently aspirates fluids while drinking. She is diagnosed as having a skull base tumor occupying the space behind the jugular foramen. Involvement of which structure is responsible for the findings?
- A.
  
  Ansa cervicalis
- B.
  
  Cervical sympathetic trunk
- C.
  
  Accessory nerve
- D.
  
  Hypoglossal nerve
- E.
  
  Vagus
11.

While doing a postoperative physical on a patient who has undergone carotid endarterectomy on the right side, it was noted that the tongue deviated toward the right when the patient was asked to point the tongue outward. What nerve crossing the carotid artery must have been injured?
- A.
  
  Glossopharyngeal
- B.
  
  Hypoglossal
- C.
  
  Inferior alveolar
- D.
  
  Lingual
- E.
  
  Vagus
12.

Any manipulation of the superior thyroid artery must be undertaken with care not to damage its small companion nerve, the:
- A.
  
  Cervical sympathetic trunk
- B.
  
  External branch of the superior laryngeal
- C.
  
  Inferior root of the ansa cervicalis
- D.
  
  Internal branch of the superior laryngeal
- E.
  
  Recurrent laryngeal
13.

The carotid body is innervated by a branch of the:
- A.
  
  Glossopharyngeal nerve
- B.
  
  Hypoglossal nerve
- C.
  
  Spinal accessory nerve
- D.
  
  Sympathetic trunk
- E.
  
  Vagus nerve