0
When your pupils contract when exposed to bright light is this a simple reflex?
Wiki User
∙ 14y ago
Your pupils contract when exposed to bright light. This is an automatic response called a simple reflex. Is this true.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Pupils when they are exposed to bright light?
Usually between .20 and .40 of a seconds of being exposed to light pupils will dialate approx. 1/10 of an inch when transitioning from pitch black to broad daylight
Is the pupil a reflex or voluntary?
Pupils reacts to light, narrowing in bright light and widening in poor light - so is a reflex action.
What is papillary reflex?
You probably mean the pupillary reflex. It is the reflex responsible for your pupils constricting (becoming smaller) when exposed to light and dilating (becoming bigger) when you walk into a dark room.
Why is it important for the pupils to constrict when a light is shone in your eyes?
This protective reflex prevents excessively bright light from damaging the delicate photoreceptors.
What do eyes suddenly experience when bright light is exposed?
The eyes immediately constrict; This is called photopupillary reflex
Is the response of your pupil a reflex or a voluntary action?
The constriction of pupils in response to bright light is called the pupillary light reflex. If the light is shining directly into one eye, then the pupil in that eye will constrict (a direct response), but so will the pupil in the non-illuminated eye (a consensual response).This reflex involves two cranial nerves: the optic nerve, which senses the light, and the oculomotor nerve, which constricts both pupils. It is considered involuntary since you don't think about it.
Reflex constriction of the pupils when viewing close objects?
Type your answer here... Constriction of the pupils is inability to adapt to changing light.
How do you spot someone on ecstasy?
You just have to look at the person's pupils; they'll be WIDE open and in general, exposure to bright light will not have any effect on the reflex of the iris to shrink.
What is the Response of eye to bright light?
The iris controls the amount of light entering the eyes through pupil. When the surrounding is extremely bright, the iris contracts the size of pupil. This decreases the amount of light entering the eye. This is why when we are suddenly exposed to bright light, the eyes blink and in meanwhile, the iris contracts.
Is shutting of eyelids on exposure to bright light a simple or conditioned reflex?
Simple reflex
Without what can skeletal muscles contract in some reflex actions?
the brain.
In some reflex actions skeletal muscles contract without the involvement of what?
The brain
