Beginner Hypoglossal Canal Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. In which bone is the hypoglossal canal located?
- Temporal bone
- Ethmoid bone
- Occipital bone
- Sphenoid bone
Q2. Which cranial nerve passes through the hypoglossal canal?
- Vagus nerve, CN X
- Glossopharyngeal nerve, CN IX
- Accessory nerve, CN XI
- Hypoglossal nerve, CN XII
Q3. What is the principal functional modality of the hypoglossal nerve?
- General somatic sensory
- Parasympathetic secretomotor
- Somatic motor
- Special sensory for taste
Q4. Which tongue muscle is not innervated by the hypoglossal nerve?
- Hyoglossus
- Genioglossus
- Styloglossus
- Palatoglossus
Q5. Where is the hypoglossal canal located relative to the occipital condyle?
- Within the mandibular condyle
- Superior to the occipital condyle
- Inferior to the hyoid bone
- Inside the mastoid process
Q6. Which large opening lies medial to the hypoglossal canal?
- Optic canal
- Mental foramen
- Foramen rotundum
- Foramen magnum
Q7. Which opening lies posterolateral to the hypoglossal canal at the skull base?
- Supraorbital foramen
- Foramen ovale
- Incisive foramen
- Jugular foramen
Q8. Does the hypoglossal nerve leave the skull through the jugular foramen?
- No, it exits through the hypoglossal canal
- Yes, with the internal jugular vein
- Yes, with CN IX and X
- No, it exits through the optic canal
Q9. Which anatomical region is entered by CN XII after it exits the hypoglossal canal?
- Middle cranial fossa
- Orbit
- Middle ear
- Upper neck
Q10. What structure is most directly endangered by a lesion confined to the hypoglossal canal?
- Facial nerve within the internal acoustic meatus
- Optic nerve
- Hypoglossal nerve
- Mandibular nerve