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Questions and Answers
Which of the following is true about mydriasis?
Which of the following is true about mydriasis?
- It causes pupil constriction and contraction of ciliary muscle
- It involves pupil dilatation and relaxation of ciliary muscle (correct)
- It results in pupil constriction and relaxation of ciliary muscle
- It leads to pupil dilatation and contraction of ciliary muscle
What effect does sympathetic discharge have on the pupil?
What effect does sympathetic discharge have on the pupil?
- It has no effect on the size of the pupil
- It causes rapid blinking of the eyelids
- It dilates the pupil to allow more light into the eye (correct)
- It constricts the pupil to reduce light entering the eye
What is the function of parasympathetic fibers III, VII, IX in relation to salivary secretion?
What is the function of parasympathetic fibers III, VII, IX in relation to salivary secretion?
- They increase salivary secretion (correct)
- They regulate sweat secretion instead of salivary secretion
- They have no effect on salivary secretion
- They decrease salivary secretion
What happens to cerebral blood flow when there is vasoconstriction due to sympathetic discharge?
What happens to cerebral blood flow when there is vasoconstriction due to sympathetic discharge?
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What effect does facial nerve (7th) stimulation have on submandibular gland?
What effect does facial nerve (7th) stimulation have on submandibular gland?
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