4. A 3-year-old male child complains of an earache. You suspect otitis media and prescribe an antibiotic. Children below the age of seven are more prone to otitis media because:
a. The inner ear is not well developed
b. The salpingopharyngeus muscle is much shorter
c. The Eustachian tube is shorter.
d. The Eustachian tube is longer
e. They are more prone to develop colds.
12. A pharyngeal (gag) reflex is the contraction of the pharyngeal constrictor muscles that is elicited by touching the back of a patient's pharynx (with a tongue depressor). Afferent nerve fibers that innervated the pharyngeal mucosa are branches of which of the following nerves?
6. A 52-year-old man is admitted to the emergency department with a bullet wound in the infratemporal fossa. During the physical examination it is observed that the patient has lost unilateral sensation of hot, cold, pain, and pressure from the front part of the tongue, but taste and salivary function are preserved. Which of the following is the most likely damaged?
a. CNVII was transected distal to the origin of the chorda tympani
b. Receptors for hot, cold, pain, and pressure are absent in the patient's tongue.
c. CNIX has been injured in the pharynx.
d. The superior laryngeal nerve was obviously severed by the bullet.
e. The lingual nerve was injured at its origin near the foramen ovale.
5 Multiple Choice Questions
5 True/False Questions
14. A 21-year-old woman presents to her physician with a swelling on her neck. On examination she is diagnosed with an infection within the carotid sheath. Which of the following structures would be damaged?
a. CNX and middle cervical ganglion
b. Internal carotid artery and recurrent laryngeal nerve
c. Internal jugular vein and vagus nerve- also common and internal carotid arteries
d. Sympathetic trunk and common carotid artery → D
2. A 53-year old woman with a severe middle ear infection comes to a hospital. On examination a physician finds that the infection has injured the tympanic nerve (Jacobson's nerve). The damaged nerve:
a. Is a branch of the facial nerve
b. Contains postganglionic parasympathetic fibers
c. Synapses with fibers in the lesser petrosal nerve
d. Is a branch of CNIX
e. Forms the tympanic plexus in the external auditory meatus
. → D
7. A 32-year-old man is admitted to the hospital with nausea, vomiting, and severe headache. An MRI reveals an acoustic neuroma. Which of the following nerves is most likely compressed by the tumor?
a. CNVII- a vestibuloschwannoma is a benign tumor of CNVIII, primarily the vestibular part. This usually causes compression of CNVII.
e. CNVI → E
8. A young boy has fractured his sella turcica after falling off his skateboard. This is probably due to fracture of which of the following bones?
d. Frontal → A
5. A 55-year-old woman is undergoing thryoidectomy. Two months postop she suffers from loss of sensation within the larynx from the vocal folds upwards to the entrance of the larynx, allowing for aspiration of liquids into the airway. Which of the following nerves is most likely injured?
a. Internal laryngeal nerve
b. External laryngeal nerve
c. Glossopharyngeal nerve
d. Hypoglossal nerve
e. Recurrent laryngeal nerve → D