Questions and Answers
Which cranial nerve is the mandibular nerve a division of?
Where does the mandibular nerve emerge from the cranium?
What type of fibers does the mandibular nerve carry?
What is the location of the sensory ganglion of the trigeminal nerve?
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What is the main function of the motor root of CN V?
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What does the nerve to the medial pterygoid muscle supply?
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Which of the following is NOT supplied by the nerve to the medial pterygoid muscle?
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What is the primary function of the tensor veli palatini muscle?
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Which of the following is supplied by the nerve to the medial pterygoid muscle?
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What is the primary function of the tensor tympani muscle?
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Which muscle does the masseteric nerve innervate?
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What is the function of the deep temporal nerves?
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Which of the following muscles is NOT innervated by branches of the anterior division?
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What structure is innervated by both the masseteric nerve and the deep temporal nerves?
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What is the common origin of the masseteric nerve and the deep temporal nerves?
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Which of the following is NOT a branch of the posterior division of the mandibular nerve?
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What is the primary function of the posterior division of the mandibular nerve?
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What type of nerve fibers are found in the branches of the posterior division of the mandibular nerve?
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Which of the following muscles is innervated by the nerve to the mylohyoid?
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Which of the following statements about the posterior division of the mandibular nerve is TRUE?
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Which of the following structures receives innervation from the inferior palpebral branch?
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Which of the following is a branch of the mandibular nerve?
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What is the primary function of the nasal branch?
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Which of the following nerves originates from the same cranial nerve as the inferior palpebral branch?
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Which of the following is NOT a characteristic of the branches of the mandibular nerve?
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Study Notes
Mandibular Nerve
- The mandibular nerve (CN V3) is the largest and inferior division of the trigeminal nerve.
- It is formed by the union of sensory fibers from the sensory ganglion and the motor root of CN V in the foramen ovale in the greater wing of the sphenoid.
- The trunk of CN V3 emerges from the cranium to enter the infratemporal fossa.
Branches of the Mandibular Nerve
- The mandibular nerve supplies the dura mater and the mucous lining of the mastoid air cells.
- It has a branch to the medial pterygoid muscle, which also supplies the tensor tympani and tensor veli palatini muscles.
Anterior Division of the Mandibular Nerve
- The anterior division has the following branches:
- Masseteric nerve to the masseter muscle and TMJ.
- Deep temporal nerves to the temporalis muscle and TMJ.
Posterior Division of the Mandibular Nerve
- The branches of the posterior division are mainly sensory, except for the nerve to the mylohyoid muscle.
Terminal Branches of the Mandibular Nerve
- The mandibular nerve ends on the face by dividing into several branches:
- Inferior palpebral branch (to conjunctiva, and skin of lower eyelid).
- Nasal branch (to skin of nose).
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Description
This quiz covers the anatomy of the mandibular nerve, its formation, and its components. Learn about the inferior division of the trigeminal nerve and its functions.
