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Question
Which of the following cranial nerves is not a motor nerve?
Which of the following cranial nerves is not a motor nerve?
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Solution
The correct option is A II
Cranial nerves are those that emerge directly from the brain and relay motor and sensory innervation mainly to the structures of the head and neck. In human beings, there are twelve cranial nerves pairs and are numbered I-XII.
These are named according to their structure or function; I- olfactory nerve, II- optic nerve, III- oculomotor nerve, IV- trochlear, V- trigeminal nerve, VI- abducens nerve VII- facial nerve, VIII- vestibulocochlear nerve, IX- glossopharyngeal nerve, X- vagus nerve, XI- accessory nerve, XII- hypoglossal nerve. Some cranial nerves only have the sensory function, some only have the motor function, while others have both motor and sensory function. Optical nerve (Cranial nerve II) So, the correct answer is 'II'
Cranial nerves are those that emerge directly from the brain and relay motor and sensory innervation mainly to the structures of the head and neck. In human beings, there are twelve cranial nerves pairs and are numbered I-XII.
These are named according to their structure or function; I- olfactory nerve, II- optic nerve, III- oculomotor nerve, IV- trochlear, V- trigeminal nerve, VI- abducens nerve VII- facial nerve, VIII- vestibulocochlear nerve, IX- glossopharyngeal nerve, X- vagus nerve, XI- accessory nerve, XII- hypoglossal nerve. Some cranial nerves only have the sensory function, some only have the motor function, while others have both motor and sensory function. Optical nerve (Cranial nerve II)
These are named according to their structure or function; I- olfactory nerve, II- optic nerve, III- oculomotor nerve, IV- trochlear, V- trigeminal nerve, VI- abducens nerve VII- facial nerve, VIII- vestibulocochlear nerve, IX- glossopharyngeal nerve, X- vagus nerve, XI- accessory nerve, XII- hypoglossal nerve. Some cranial nerves only have the sensory function, some only have the motor function, while others have both motor and sensory function. Optical nerve (Cranial nerve II)
So, the correct answer is 'II'
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