| 单词 | third eyelid |
| 例句 | The surgery was complicated by the unique characteristics of penguins, such as a third eyelid, which protects their eyes underwater but had a tendency to close during the surgery. Singapore: The penguins given world-first cataract surgery 2023-03-17T04:00:00Z His daughter searched for information online and learned about a membrane, or third eyelid, that protects the birds’ peepers in-flight and on fishing expeditions. Pelicans’ paradise on Smith Island, Md. 2022-07-01T04:00:00Z Tucked in the inner corner of the cat's eye, the third eyelid is a biological curiosity long thought to be irrelevant, much like the human appendix or wisdom teeth. The Mystery of the Cat's Inner Eyelid 2015-11-20T05:00:00Z A third eyelid, between the regular eyelids and the cornea, protects the globe and also has a gland at the bottom that produces extra tears. How Cats See in the Dark 2014-06-02T04:00:00Z The eye is provided with a nictitating membrane or third eyelid, at the base of which open the ducts of the Harderian gland. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 6 "Home, Daniel" to "Hortensius, Quintus" 2012-03-15T02:00:32.250Z Haw, haw, n. the nictitating membrane or third eyelid, as of a horse; also a disease of this membrane. Chambers's Twentieth Century Dictionary (part 2 of 4: E-M) 2012-01-11T03:00:23.770Z We have, for example, in the inner corner of the eye a relic of that third eyelid whereby the eagle is enabled to look at the sun. The Book of Life 2011-11-25T03:00:13.343Z The anatomy of the third eyelid is complex. The Mystery of the Cat's Inner Eyelid 2015-11-20T05:00:00Z The nictitating membrane or third eyelid is well-developed in amphibians, reptiles, birds and some few sharks; it is less marked in mammals, and in Man is only represented by the little plica semilunaris. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z At a much earlier period, the internal anatomical peculiarities approached those of the lowest mammals, and the eye was provided with a third eyelid. Charles Darwin 2010-12-24T03:00:33.847Z There is every reason to believe that this is the rudiment of a membrane which is fully developed in many animals, and is especially useful to birds, the nictitating membrane, or third eyelid. Man And His Ancestor A Study In Evolution Thus, man has still the rudiment of the third eyelid of his shark-ancestor. The World's Greatest Books — Volume 15 — Science But the third eyelid actually plays an important role in maintaining the eye's health. The Mystery of the Cat's Inner Eyelid 2015-11-20T05:00:00Z The vestigial third eyelid in man is enough of itself to prove his relationship with the mammals, but it is only one example out of many. The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told Anteriorly it is protected by the eyelids, and in birds by a third eyelid that corresponds to the membrana nictitans of quadrupeds. Common Diseases of Farm Animals The eagle has what is really a third eyelid, a thin translucent membrane, which naturalists call the nictitating, or winking, membrane. Journeys Through Bookland, Vol. 4 |
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