The difference is important in mechanics. Dilation refers to a uniform enlargement or stretch whereas dilatation refers to general enlargement
RMB Ex. A human pupil dilates and a cat pupil dilatates
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..
Certain drugs can cause your eyes to dilate or constrict but barring that it is mostly a function of regulating how much light is entering the eye. If you want to undilate your eye, be in brighter light.Also check out this web site. It might help you out some.http://www.wikihow.com/Dilate-or-Shrink-Your-Pupils-on-Command
Arterioles dilate in warm environments (vasodilation). Dilate means to open. Vasodilation is a process in which the increased blood flow through the dermis brings excess heat close to the body surface to be radiated to the environment. Arterioles constrict in cold environments (vasoconstriction). Constrict means to close. Vasoconstriciton is a process in which the decreased blood flow through the dermis keeps heat within the core of the body. Both take place to maintain homeostasis. In stressful situations, vasoconstriction takes place. It will shunt in the dermis or redirect blood to more vital organs such as the muscles, heart and brain.
Not necessarily. Eyes dilate for many reasons.
The drops the ophthalmologist put in my eyes made my pupils dilate.
dilate
It causes them to dilate not constrict.
Capillaries
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..
Almost all the veins and arteries constrict and dilate during heavy exercise. Even capillaries bring a flush to the face and skin by dilation.
dilates them
They don't, narcotics make your pupils dilate.
Pupils "constrict" when light enters, and "dilate "when the lighting dims
Bronchioles don't have cartilage because they need to be able to constrict and dilate
Constrict by releasing a vasoconstrictor chemical, usually ATP
No -- rather the opposite. Most opiates, opioid and similar drugs constrict the pupil.
Nothing, blood vessels are nothing because they wont harm you or anything like that.