QuestionJuly 20, 2025

Special sensory inputs arrive by which cranial nerves?(Figure 16-11) A II and IV B VII and VIII C land II D II and VIII E V and VII

Special sensory inputs arrive by which cranial nerves?(Figure 16-11) A II and IV B VII and VIII C land II D II and VIII E V and VII
Special sensory inputs arrive by which cranial nerves?(Figure 16-11) A II and IV B VII and VIII C land II D II and VIII E V and VII

Solution
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Answer

C I and II; D II and VIII Explanation 1. Identify Special Sensory Inputs Special sensory inputs refer to senses such as vision, hearing, smell, and taste. These are typically associated with specific cranial nerves responsible for transmitting these sensory signals to the brain. 2. Match Cranial Nerves to Special Senses The cranial nerves associated with special senses are: - **I (Olfactory nerve)**: Responsible for smell. - **II (Optic nerve)**: Responsible for vision. - **VIII (Vestibulocochlear nerve)**: Responsible for hearing and balance. 3. Analyze Options Based on the identification of cranial nerves related to special senses: - Option A: II and IV - Incorrect, IV is not associated with special senses. - Option B: VII and VIII - Incorrect, VII is primarily motor and sensory for facial expressions and taste, but not a primary special sensory input. - Option C: I and II - Correct, both are associated with special senses (smell and vision). - Option D: II and VIII - Correct, both are associated with special senses (vision and hearing). - Option E: V and VII - Incorrect, V is primarily sensory for the face and VII is primarily motor and sensory for facial expressions and taste.

Explanation

1. Identify Special Sensory Inputs<br /> Special sensory inputs refer to senses such as vision, hearing, smell, and taste. These are typically associated with specific cranial nerves responsible for transmitting these sensory signals to the brain.<br /><br />2. Match Cranial Nerves to Special Senses<br /> The cranial nerves associated with special senses are:<br />- **I (Olfactory nerve)**: Responsible for smell.<br />- **II (Optic nerve)**: Responsible for vision.<br />- **VIII (Vestibulocochlear nerve)**: Responsible for hearing and balance.<br /><br />3. Analyze Options<br /> Based on the identification of cranial nerves related to special senses:<br />- Option A: II and IV - Incorrect, IV is not associated with special senses.<br />- Option B: VII and VIII - Incorrect, VII is primarily motor and sensory for facial expressions and taste, but not a primary special sensory input.<br />- Option C: I and II - Correct, both are associated with special senses (smell and vision).<br />- Option D: II and VIII - Correct, both are associated with special senses (vision and hearing).<br />- Option E: V and VII - Incorrect, V is primarily sensory for the face and VII is primarily motor and sensory for facial expressions and taste.
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