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Questions and Answers
What is the origin of sympathetic supply to the head and neck?
What is the origin of sympathetic supply to the head and neck?
- From 7th and 8th thoracic segments
- From 1st and 2nd thoracic segments (correct)
- From 5th and 6th thoracic segments
- From 3rd and 4th thoracic segments
Where does the relay of sympathetic supply to the head and neck occur?
Where does the relay of sympathetic supply to the head and neck occur?
- Superior cervical sympathetic ganglion (correct)
- Stellate ganglion
- Inferior cervical sympathetic ganglion
- Middle cervical sympathetic ganglion
What is the effect of sympathetic stimulation on the eye?
What is the effect of sympathetic stimulation on the eye?
- Mydriasis (correct)
- Ptosis
- Miosis
- Enophthalmos
What muscle is responsible for mydriasis during sympathetic stimulation?
What muscle is responsible for mydriasis during sympathetic stimulation?
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What involuntary structure in the eye is affected by sympathetic supply?
What involuntary structure in the eye is affected by sympathetic supply?
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