Podcast
Questions and Answers
A patient reports difficulty in protruding and retracting their tongue with the tip pointing to the left. Which cranial nerve is most likely affected?
A patient reports difficulty in protruding and retracting their tongue with the tip pointing to the left. Which cranial nerve is most likely affected?
- Hypoglossal (XII) (correct)
- Trigeminal (V)
- Facial (VII)
- Glossopharyngeal (IX)
Following a traumatic injury, a patient exhibits a diminished gag reflex and difficulty swallowing. Which of the following cranial nerves would you assess first?
Following a traumatic injury, a patient exhibits a diminished gag reflex and difficulty swallowing. Which of the following cranial nerves would you assess first?
- Trigeminal (V)
- Vagus (X) (correct)
- Facial (VII)
- Trochlear (IV)
A patient reports a loss of taste sensation on the posterior third of their tongue, but no other sensory or motor deficits. Which cranial nerve is most likely affected?
A patient reports a loss of taste sensation on the posterior third of their tongue, but no other sensory or motor deficits. Which cranial nerve is most likely affected?
- Trigeminal (V)
- Facial (VII)
- Hypoglossal (XII)
- Glossopharyngeal (IX) (correct)
A patient is unable to perform voluntary lateral eye movements. Which nerve would you suspect to be damaged?
A patient is unable to perform voluntary lateral eye movements. Which nerve would you suspect to be damaged?
A patient presents with unilateral facial paralysis, including the inability to close their eye and drooping of the mouth on the affected side, but reports no loss of taste. Which branch of the facial nerve is most likely affected?
A patient presents with unilateral facial paralysis, including the inability to close their eye and drooping of the mouth on the affected side, but reports no loss of taste. Which branch of the facial nerve is most likely affected?
Flashcards
Trochlear Nerve (IV)
Trochlear Nerve (IV)
Moves eyes downward and inward.
Trigeminal Nerve (V)
Trigeminal Nerve (V)
Deals with facial sensation and chewing.
Facial Nerve (VII)
Facial Nerve (VII)
Controls facial expressions and taste on the front two-thirds of the tongue.
Glossopharyngeal Nerve (IX)
Glossopharyngeal Nerve (IX)
Signup and view all the flashcards
Hypoglossal Nerve (XII)
Hypoglossal Nerve (XII)
Signup and view all the flashcards
Study Notes
- The trochlear nerve (IV) controls eye movement, specifically downward and inward motion.
- The trigeminal nerve (V) is responsible for facial sensation and chewing.
- The facial nerve (VII) controls facial expressions and taste on the front two-thirds of the tongue.
- The glossopharyngeal nerve (IX) facilitates swallowing and taste on the back third of the tongue.
- The hypoglossal nerve (XII) controls tongue movement.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
An overview of cranial nerve functions, covering the trochlear (IV), trigeminal (V), facial (VII), glossopharyngeal (IX), and hypoglossal (XII) nerves. Key functions include eye movement, facial sensation, chewing, facial expressions, taste, swallowing, and tongue movement.
