#1
Which muscle forms the bulk of the soft palate?
Levator veli palatini
ExplanationPrimary muscle responsible for elevating the soft palate.
#2
What is the function of the soft palate?
Separates nasal and oral cavities
ExplanationDivides the nasal and oral cavities during swallowing and speech.
#3
Which muscle attaches to the hard palate and helps in elevating it?
Levator veli palatini
ExplanationConnects to the hard palate and aids in lifting it during swallowing and speech.
#4
What is the name of the space between the soft palate and the pharyngeal wall?
Retropharyngeal space
ExplanationThe area behind the soft palate and the posterior pharyngeal wall.
#5
Which of the following muscles is NOT involved in elevating the soft palate?
Palatopharyngeus
ExplanationPrimarily involved in narrowing the pharynx, not elevating the soft palate.
#6
Which structure forms the posterior border of the velopharyngeal port?
Soft palate
ExplanationForms the back boundary of the opening between the nasal and oral cavities.
#7
Which nerve innervates the muscles of the soft palate except tensor veli palatini?
Vagus nerve (CN X)
ExplanationInnervates most soft palate muscles except tensor veli palatini.
#8
Which muscle is responsible for opening the velopharyngeal port?
Salpingopharyngeus
ExplanationContracts to open the passage between the nasopharynx and oropharynx.
#9
What is the arterial blood supply to the soft palate?
Ascending pharyngeal artery
ExplanationSupplies oxygenated blood to the soft palate tissues.
#10
Which of the following is not a function of the soft palate?
Regulation of salivary secretion
ExplanationSoft palate primarily involved in speech and swallowing, not salivary regulation.
#11
What is the primary function of the velopharyngeal port?
To separate the oral and nasal cavities during speech
ExplanationEssential for articulating speech sounds without nasal resonance.
#12
Which structure forms the anterior border of the velopharyngeal port?
Uvula
ExplanationForms the front boundary of the passage between the oral and nasal cavities.
#13
Which nerve innervates the tensor veli palatini muscle?
Trigeminal nerve (CN V)
ExplanationResponsible for innervating the tensor veli palatini muscle.
#14
Which cranial nerve innervates the palatoglossus muscle?
Glossopharyngeal nerve (CN IX)
ExplanationProvides motor innervation to the palatoglossus muscle.
#15
Which structure separates the oral cavity from the nasopharynx during swallowing?
Soft palate
ExplanationCloses off the nasopharynx from the oral cavity during swallowing.