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Pupils dilate after death because of the pupillary sphincter muscles associated with the iris (colored portion) of the eye. The pupil is just a hole in the eye! it is not a piece of tissue, skin or something tangible it is just a hole. The pupil appears as though it gets bigger or smaller because of the movement of the iris around it
The Iris is a muscle: It is the IRIS that is actually expanding or contracting in order to regulate the amount of light that enters the eye, when the iris gets bigger the pupil looks smaller when the iris gets smaller the pupil looks bigger.
When you pass away and your system shuts down your muscles experience rigor mortis where your muscles become stiff and locked in a certain position. The iris loses its ability to control movement and becomes locked in a loose retracted state, making the pupil appear to dilate.
What else can I help you with?
Can steroids cause the pupils to dilate?
Can steroids cause pupils to dilate
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
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.
Why do narcotics make pupils constrict?
They don't, narcotics make your pupils dilate.
Does weed dilate pupils?
no but i makes your pupils small and gives you bloodshot eyes
Shining a flashlight into your eye would cause your pupils to become?
Your pupils would dilate
When your pupiles dilate do they get bigger or smaller?
Dilated pupils are bigger, and constrictred pupils are smaller.
What OTC drugs dilate pupils?
Dramamine, Diphenhyramine:)
Does methamphetamines dilate pupils?
Yes they do. You will look like a cartoon character.
Do pupils of the eye always dilate at brain death?
Pupils typically dilate at brain death due to the loss of neurological control over the muscles that constrict the iris. This dilation is a result of the absence of brainstem activity, which regulates pupil size. However, it's important to note that not all cases of brain death may present with fully dilated pupils, as factors like medications or other conditions can influence pupil response. Therefore, while pupil dilation is a common indicator of brain death, it is not an absolute rule.
