Block 5 Anatomy Wk 3 From Ta's W Exp

19 Questions | By Chachelly | Last updated: Mar 21, 2022 | Total Attempts: 152

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1.

A patient comes to you complaining of not being able to eat. On exam, you notice that she is having difficulty protracting her jaw. What muscle is most likely affected?
- A.
  
  Medial pterygoid
- B.
  
  Lateral pterygoid
- C.
  
  Temporalis
- D.
  
  Masseter
- E.
  
  Mylohyoid
2.

The chorda tympani nerve contains which of the following fibers?
- A.
  
  SSA to anterior 2/3 of tongue
- B.
  
  Postganglionic sympathetic
- C.
  
  SVA to posterior 1/3 of tongue
- D.
  
  Preganglionic parasympathetic
- E.
  
  Postganglionic parasympathetic
3.

During a pathology rotation the attending physician points to a nerve as it crosses behind the body of the mandible and asks your class, "what nerve modalities are running in this part of the lingual nerve?" You confidently respond:
- A.
  
  GSE and GVE
- B.
  
  GSA and GVE
- C.
  
  SVA, GVE and GSA
- D.
  
  GVE, SVA and GSE
- E.
  
  GSE and SSA
4.

Damage to the lingual nerve right before it is joined by the chorda tympani nerve would result in a loss of which of the following:
- A.
  
  Loss of somatic sensation to the posterior 2/3 of the tongue
- B.
  
  Loss of parasympathetic innervation to the submandibular/sublingual gland
- C.
  
  Loss of parasympathetic innervation to the submandibular/sublingual gland AND taste to the anterior 2/3 of the tongue
- D.
  
  Loss of taste AND somatic sensation to the anterior 2/3 of the tongue
- E.
  
  Loss of somatic sensation to the anterior 2/3 of the tongue
5.

A lesion to the chorda tympani nerve would cause what clinical sign?
- A.
  
  Patient complaining of swollen cheek
- B.
  
  Patient complaining of loss of somatic sensation to anterior 2/3 of tongue
- C.
  
  Patient cannot stop producing saliva
- D.
  
  Patient is unable to taste his favorite cake with anterior 2/3 of tongue
- E.
  
  Patient is unable to move 1 side of his/her face
6.

A small lesion has damaged the vagus nerve proximal to its pharyngeal branches. Which muscle would still be functional?
- A.
  
  Superior pharyngeal constrictors
- B.
  
  Stylopharyngous
- C.
  
  Middle Pharyngeal constrictors
- D.
  
  Levator palitini
7.

An elderly man comes to see you in your office about large quantities of ear wax that have built up in his ears. You decide to clean the wax out, and while you are dislodging the ear wax for him, he starts to tell you that he is feeling faint and dizzy. His symptoms are a result of:
- A.
  
  His age
- B.
  
  Stimulation to his inner tympanic membrane eliciting a vagus response
- C.
  
  Stimulation to his external auditory canal eliciting a vagus response
- D.
  
  Pain from the procedure eliciting a vagus response
8.

Patient comes to your office complaining of inability to extend at the wrist, you suspect compressed brachial plexus. Which of the following could cause his symptoms?
- A.
  
  Hypertension
- B.
  
  Horner's syndrome
- C.
  
  Brain tumor
- D.
  
  Co-arctation of the aorta
- E.
  
  Pancoast tumor
9.

One of many potential symptoms of Bell's Palsy is hyperacousia. Which nerve and its associated muscle is damaged in hyperacousia?
- A.
  
  CN V ; stapedius
- B.
  
  CN VII ; tensor tympani
- C.
  
  CN VII ; stapedius
- D.
  
  CN V ; tensor veli palatini
10.

For his operation, Ned is given Ketamine as an adjunct to his general anesthesia. Adverse effects include post-operative delusions and vivid hallucinations. Currently, Ned believes he is a tiny person living inside a giant middle ear. If he looks out his bedroom window, which has a glorious view of the medial wall, what structures will he see (assuming Ned’s hallucinations are anatomically correct)?
- A.
  
  Canal for tensor tympani, mastoid air sinus, tympanic membrane
- B.
  
  Oval window, round window, tympanic plexus
- C.
  
  Oval window, tympanic membrane, chorda tympani nerve
- D.
  
  Tympanic plexus, round window, canal for tensor tympani
11.

A 45-year-old woman is suffering from numbness just anterior to her left ear. Which of the following nerves is most likely to be damaged?
- A.
  
  Ophthalmic division of Trigeminal nerve
- B.
  
  Maxillary division of Trigeminal nerve
- C.
  
  Mandibular division of Trigeminal nerve
- D.
  
  Facial nerve
12.

A young girl complains of dryness of the nose, palate, and eye. This would indicate a lesion to which of the following ganglia?
- A.
  
  Nodose ganglion
- B.
  
  Otic ganglion
- C.
  
  Pterygopalatine ganglion
- D.
  
  Submandibular ganglion
- E.
  
  Ciliary gangion
13.

To relieve Raynaud’s syndrome in your patient, where do you anesthetize?
- A.
  
  Vagus nerve
- B.
  
  Internal carotid artery
- C.
  
  Stellate ganglion
- D.
  
  Sympathetic trunk
14.

After having a few cervical lymph nodes biopsied, a patient has reduced ability to flex his head to the left or turn his head to the right. Which of the following structures was most likely damaged?
- A.
  
  CN XI
- B.
  
  Phrenic Nerve
- C.
  
  CN X
- D.
  
  Superior Trunk of Brachial Plexus
- E.
  
  Dorsal Scapular Nerve
15.

A patient is unable to taste a piece of sugar placed on the tip of the tongue. Which nerve is most likely to have a lesion?
- A.
  
  Facial nerve
- B.
  
  Glossopharyngeal nerve
- C.
  
  Hypoglossal nerve
- D.
  
  Trigeminal nerve
- E.
  
  Vagus nerve
16.

Ned walks in to his 4^th semester ICM practical exam to find that his standardized patient is Richard Kiel, the 7-foot actor who played Jaws in The Spy Who Loved Me and (possibly more notably) Mr. Larson in Happy Gilmore. Ned’s task is to examine the trigeminal and facial nerves. After washing his hands, greeting the patient, and inspecting the patient’s face, Ned asks Mr. Kiel to clench his jaws. This joke makes Ned giggle, but he’s able to palpate bilateral contractions of the appropriate muscles. Next, he instructs Mr. Kiel to open his mouth and move his mandible side to side. What muscle is Ned primarily testing with this last maneuver?
- A.
  
  Medial Pterygoid
- B.
  
  Lateral Pterygoid
- C.
  
  Masseter
- D.
  
  Sternocleidomastoid
17.

A 35 year old extremely wealthy and successful Alto singer from California comes to your walk-in clinic claiming that she can no longer sing and appears to be very distraught. Recent PMH shows that she had a thyroglossal duct cyst surgically removed 2 weeks ago. You notice that the surgical incision was made below the level of the thyroid cartilage and was slightly lateral to the mid-line of the neck. Which nerve was most likely damaged during this patient's previous surgery that caused her chief complaint?
- A.
  
  There was no surgical complication; the patient is malingering in hopes of gaining a quick buck via lawsuit.
- B.
  
  Inferior laryngeal nerve
- C.
  
  Internal laryngeal nerve
- D.
  
  Nerve to mylohyoid
- E.
  
  External laryngeal nerve
18.

A 46-year-old man visits the speech therapist complaining of dryness of the mouth. The therapist performs a swallowing study and, on examination, finds that the man has a lack of salivary secretion from the submandibular gland. This indicates a lesion of which of the following nervous structures?
- A.
  
  Lingual nerve at its origin
- B.
  
  Chorda tympani in the middle ear cavity
- C.
  
  Superior cervical ganglion
- D.
  
  Lesser petrosal nerve
- E.
  
  Auriculotemporal nerve
19.

Which of the following muscles retracts the mandible?
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D