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A cat's whiskers are more than twice as thick as ordinary cat hairs, and their roots are three times deeper in a cat's tissue than other hairs. They have numerous nerve endings at their base, which give cats extraordinarily detailed information about nearby air movements and objects with which they make physical contact. They enable a cat to ...
A mydriatic pupil will remain excessively large even in a bright environment. The excitation of the radial fibres of the iris which increases the pupillary aperture is referred to as a mydriasis. More generally, mydriasis also refers to the natural dilation of pupils, for instance in low light conditions or under sympathetic stimulation.
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Dilation and constriction of the pupil. Pupillary response is a physiological response that varies the size of the pupil, via the optic and oculomotor cranial nerve.. A constriction response (), [1] is the narrowing of the pupil, which may be caused by scleral buckles or drugs such as opiates/opioids or anti-hypertension medications.
Pupils equal, round, reactive to light and accommodation PH Pinhole see Pinhole occluder and Visual_acuity#Legal_definitions: PHNI Pinhole No Improvement see Pinhole occluder and Visual_acuity#Legal_definitions: PHVA Pinhole Visual Acuity: PL Perception of light POH / PrOH Previous ocular history PPA Peri-papillary atrophy Pt Patient RAPD
Pet cats have their own little quirks, one being the ability to slip into the most unusual places around the house. Before you know it, you’re finding your furry feline friend balled up in a ...
An alert cat at night, with pupils dilated and ears directed at a sound. Outdoor cats are active both day and night, although they tend to be slightly more active at night. [91] Domestic cats spend the majority of their time in the vicinity of their homes but can range many hundreds of meters from this central point.
Cats seem to have a sense of when their humans are feeling unwell and if their favorite person is laid up on the couch or has taken to their bed with a cold or the flu, they'll often camp out ...