CORRECT ANSWERS
The involuntary components of swallowing are sequenced primarily by:
a. Unilateral cortical circuitry only
b. Peripheral nerve loops only
c. Bilateral brainstem circuitry
d. Visual feedback only - Answer- Bilateral brainstem circuitry
A cough that occurs after swallowing is most often interpreted as:
a. Oral preparatory issue
b. Pharyngeal phase issue
c. Normal finding with no relevance
d. Esophageal peristalsis failure only - Answer- Pharyngeal phase issue
Match each phase with the best description.
A. Oral preparatory
B. Oral
C. Pharyngeal
D. Esophageal
1. Transport from mouth to throat
2. Bolus formation and chewing
3. Peristaltic movement toward stomach
4. Involuntary airway protection and bolus clearance - Answer- A-2, B-1, C-4, D-3
Match the cranial nerve with the swallow relevant function.
A. CN V
B. CN VII
C. CN IX
D. CN XII
1. Tongue movement and bolus manipulation
2. Mastication motor and major facial and oral sensation
3. Posterior tongue taste and pharyngeal contribution
4. Anterior tongue taste and facial movement - Answer- A-2, B-4, C-3, D-1
Match each branch with the best description.
A. Recurrent laryngeal nerve
B. External branch of the superior laryngeal nerve
C. Internal branch of the superior laryngeal nerve
1. Motor to cricothyroid
, 2. Sensory from supraglottic larynx and piriform sinuses
3. Motor to most intrinsic laryngeal muscles - Answer- A-3, B-1, C-2
Match the sphincter with the most direct function.
A. Velopharyngeal
B. Laryngeal
C. Upper esophageal
D. Lower esophageal
1. Prevent nasal escape of bolus
2. Isolate airway from the tract above
3. Gate bolus entry into esophagus
4. Limit retrograde movement at the esophagogastric junction - Answer- A-1, B-2, C-3,
D-4
Match the clinical sign to the most likely phase level interpretation.
A. Difficulty chewing textures
B. Delayed cough after swallow
C. Nasal regurgitation
D. Trouble moving bolus from mouth to throat
1. Oral preparatory
2. Pharyngeal
3. Velopharyngeal closure problem
4. Oral transport - Answer- A-1, B-2, C-3, D-4
The four phases acronym is __________. - Answer- POPE (Preparatory, Oral,
Pharyngeal, and Esophogeal)
The pharyngeal phase begins when the bolus reaches the anterior __________ pillars -
Answer- Tonsillar
The orderly esophageal contraction wave that moves the bolus toward the stomach is
called __________. - Answer- Peristalsis
Chewing is part of the oral __________ phase. - Answer- Preparatory
The primary muscle of the upper esophageal sphincter is the __________. - Answer-
Cricopharyngeus
At rest, the upper esophageal sphincter is in tonic __________. - Answer- Contraction
The cranial nerve that provides motor input for muscles of mastication is CN
__________. - Answer- V
Taste from the anterior two-thirds of the tongue is carried primarily by CN __________.
- Answer- VII