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Perifovea is a region in the retina that circumscribes the parafovea and fovea and is a part of the macula lutea. [1] The perifovea is a belt that covers a 10° radius around the fovea and is 1.5 mm wide. [2] [3] The perifovea ends when the Henle's fiber layer disappears and the ganglion cells are one-layered. [4]
A cat exhibiting psychogenic alopecia (excessive grooming). Resulting baldness is noticeable around the abdomen, flank, and legs. Psychogenic alopecia, also called over-grooming or psychological baldness, [1] [2] is a compulsive behavior that affects domestic cats. Generally, psychogenic alopecia does not lead to serious health consequences or ...
Parafovea or the parafoveal belt is a region in the retina that circumscribes the fovea and is part of the macula lutea. [1] It is circumscribed by the perifovea.. Photograph of the retina of the human eye, with overlay diagrams showing the positions and sizes of the macula, fovea, and optic disc
Dealing With Cat Hair Atchoum’s human mom, Nathalie Côté likes to joke that she vacuums up to five times a day to deal with her kitty’s prodigious amount of fur, and as a fellow keeper of a ...
The fovea centralis is a small, central pit composed of closely packed cones in the eye.It is located in the center of the macula lutea of the retina. [1] [2]The fovea is responsible for sharp central vision (also called foveal vision), which is necessary in humans for activities for which visual detail is of primary importance, such as reading and driving.
The final type of hair on a cat is called guard hairs. These are the longest hairs on a cat (and on some cats, they can be quite long ) as well as the most strongly pigmented.
The furry feline gets his crazy hair from a condition called hypertrichosis, or "werewolf syndrome," which causes abnormal hair growth. SEE ALSO: Service dog gets her own yearbook photo for ...
No loss of body function occurs, and the effects of alopecia areata are psychological (loss of self-image due to hair loss), although these can be severe. Loss of hair also means the scalp burns more easily in the sun. Patients may also have aberrant nail formation because keratin forms both hair and nails. [citation needed]