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The sphincter papillae controls pupil constriction and is governed by the parasympathetic nervous system. The dilator papillae controls pupil dilation and is governed the sympathetic nervous system. During the fight or flight response, only the sympathetic nervous system is stimulated. With the massive amounts of noradrenaline flowing through this system, the dilator papillae is innervated and the pupils dilate.
What else can I help you with?
Why do narcotics make pupils constrict?
They don't, narcotics make your pupils dilate.
Can steroids cause the pupils to dilate?
Can steroids cause pupils to dilate
How do opiates effect you pupils?
Suboxone causes ocular miosis or small pupils.
Is it true that if you say something someone likes to hear their pupils will dilate?
YES pupils will dilate when that person is interested in you
What is a sentence with dilate?
The drops the ophthalmologist put in my eyes made my pupils dilate.
Does pcp dilate your pupils?
Yes
What drugs make your pupils dilate?
The only ones I know for sure are mushrooms and mdma.
Do your eyes have to be dilated to have a concussion?
No. If the concussion is moderate then the pupils probably won't dilate. pupils usually dilate due to swelling in the brain.
What will make your pupils small?
When light come into your eye your pupils will get smaller. In a dim or dark room your pupils will enlarge to let in more light so you can see. Also some drugs will make your pupils smaller, or when your high they dilate.
Does weed dilate pupils?
no but i makes your pupils small and gives you bloodshot eyes
What is it called when a person's pupils no longer dilate from the light?
Pupils don't dilate from light, the constrict. They dilate in the dark, to take in more light, and constrict in the light so your eyes don't get damaged. Hallucinogenics, stimulants and alcohol and make your pupils dilate and opiates and diazepam can make them constrict. Im not sure what that's called though..
Shining a flashlight into your eye would cause your pupils to become?
Your pupils would dilate
