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What nerve controls the pupil?
The pupil is primarily controlled by the oculomotor nerve (cranial nerve III). This nerve regulates the constriction and dilation of the pupil through its control of the sphincter pupillae and dilator pupillae muscles. Additionally, the autonomic nervous system, particularly the parasympathetic fibers of the oculomotor nerve, is responsible for pupil constriction, while sympathetic fibers control dilation.
What is the opening that is controlled by the muscles of the iris?
The opening that is controlled by the muscles of the iris is called the pupil. The iris is responsible for adjusting the size of the pupil in response to different lighting conditions.
What is mydriasis?
dilation of the pupil.
Which process allows more light to reach the periphery of the retina?
Dilation of the pupil allows more light to reach the periphery of the retina by increasing the amount of light entering the eye. This is controlled by the iris muscles when lighting conditions change.
What is the word for enlarging pupil in dim light?
The word for the enlarging of the pupil in dim light is "dilation." This process occurs as the iris muscles relax, allowing more light to enter the eye, which helps improve vision in low-light conditions. Dilation is part of the body's natural response to varying light environments.
What structure is the visible colored part of the eye that controls pupil dilation?
The visible colored part of the eye that controls pupil dilation is the iris. The iris regulates the size of the pupil in response to light conditions and helps to control the amount of light that enters the eye.
What does the ciliospinal reflex do to the pupil of the eye?
The pupil dilates when stimulated by the pinching on the nape of the neck.
Does the iris controls the size of the pupil?
The iris is like a contractile structure of smooth muscles which surround the pupil. The sphincter pupillae, one of the smooth muscles categories of the eye, causes constriction of the pupil. The dillator pupillae, the other category of smooth muscles of the eys, causes the pupil to dilate.
Is the dilation of pupils considered a?
In most other circumstances, pupil dilation from medications or drugs is considered a side effect.
Does exercise affect reaction time?
Yes because of pupil dilation
Does methadone and xanax taken as prescribed cause pupil dilation?
yes it does
Does effexor cause pupil dilation?
Yes and no. Depends on what kind you take.
