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WorksheetsTHE LARYNX
Total questions: 10
Worksheet time: 20mins
A 68-year-old female with a history of uncontrolled hypertension presents to the clinic for follow-up of an abnormal finding on a recent CT scan. She presented to the emergency department 3 days ago for difficulty breathing that had progressively gotten worse over the last few weeks. The CT scan revealed a 5 cm aneurysm compressing the anterior aspect of the trachea at the 8-10 tracheal rings. An open repair of the aneurysm with a prosthetic graft is planned. Due to its location, what structure is most at risk of injury during the surgery?
Esophagus
Right vagus nerve
Left recurrent laryngeal nerve
Phrenic nerve
A 50-year-old female undergoes thyroid lobectomy. During the surgery, the muscle that runs along with the lateral cricoid cartilage and has two bellies is damaged. What is the nerve supply of this muscle?
Superior laryngeal nerve
Recurrent laryngeal nerve
Sympathetic fibers
Internal laryngeal nerve
A 68-year-old man presents to the clinic with loss of appetite, nausea, vomiting, increased thirst, and frequent urination. Physical exam elicits no abnormal findings. Laboratory exam elicits a serum calcium level of 12.5 mg/dL and an elevated PTH level. Parathyroidectomy is performed from an anterior cervical approach. Following the surgery, the patient has a hoarse voice and eventually develops aspiration pneumonia. Which of the following nerves is most likely to have been damaged during the surgery?
Inferior laryngeal nerve
Recurrent laryngeal nerve
Vagus nerve
Superior laryngeal nerve
A 58-year-old man presents to the otolaryngologist with a 4-month history of hoarseness. Flexible laryngoscopy reveals grossly intact laryngeal movement despite hoarseness. The physician suspects that low vocal cord tension is the underlying pathology. Which of the following intrinsic laryngeal muscles is likely damaged?
Thyroarytenoids
Cricothyroid
Thyroepiglottics
Oblique arytenoid
A 50-year-old woman undergoes a thyroid lobectomy. During surgery, the muscle that extends from the cricoid cartilage arch to the muscular process of the arytenoid cartilage is damaged. What is the nerve supply of this muscle?
Superior laryngeal nerve
Recurrent laryngeal nerve
Sympathetic fibers from the superior cervical ganglion
Branches from the ansa cervicalis
During a unilateral thyroid lobectomy, the general surgeon performing the operation damages the thyrohyoid membrane. If the adjacent vascular supply becomes compromised, which muscle could become impaired?
Thyroarytenoid muscle
Thyrohyoid muscle
Sternothyroid muscle
Sternohyoid muscle
A 35-year-old female singer comes to the office for a post op visit from a thyroidectomy. She denies any hoarseness, but can no longer sing high notes since the surgery a week ago. She also describes her voice as "weak." What nerve was injured and which muscle is likely not functioning as a result?
Recurrent laryngeal nerve, Cricothyroid
Superior laryngeal nerve, Cricothyroid
Vagus nerve, posterior cricoarytenoid
Superior laryngeal nerve,posterior cricoarytenoid
Wrong pair of matching regarding the muscles working on vocal cords;
Thyroarytenoid : relaxor
Lateral cricoarytenoid: adductor
Posterior cricoarytenoid : abductor
Cricothyroid: tensor
During a thyroid operation, a nerve coursing along with the superior thyroid artery is injured what can be the possible consequence?
Loss of sensation above vocal cord
Loss of sensation below vocal cord
Paralysis of lateral cricoarytenoid muscle
Paralysis of Cricothyroid muscle
Which muscle is responsible for abduction of vocal cord in the given diagram ?
A
B
C
D
