| 单词 | optic tract |
| 例句 | The eyes are just inferior to the anterior-most part of the cerebrum, but the optic nerve extends back to the thalamus as the optic tract, with branches into a region of the hypothalamus. Anatomy and Physiology 2013-06-19T00:00:00Z Ganglia geniculata are found for the first time in connexion with the optic tracts in the lower part of the thalamus. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" The optic tract, which crosses the crus, may also be affected, and hemianopia result. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. Basilar membrane: a thin membrane separating the cones and rods from the optic tract. Explanation of Terms Used in Entomology Wernicke has observed that the size of the occipital lobes is in proportion to the size of the optic tracts, and that the occipital lobes are the centers of vision. Scientific American Supplement, No. 520, December 19, 1885 There is also a connection of the optic tract to the midbrain, but the mesencephalon is adjacent to the diencephalon, so that is not difficult to imagine. Anatomy and Physiology 2013-06-19T00:00:00Z The pallium is non-nervous, and the optic tracts merely cross one another instead of forming a commissure. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" The second pair are the optic nerves, which, under the name of the optic tracts, run down to the base of the brain, from which an optic nerve passes to each eyeball. A Practical Physiology The optic tract has three major targets, two in the diencephalon and one in the midbrain. Anatomy and Physiology 2013-06-19T00:00:00Z The majority of the connections of the optic tract are to the thalamus—specifically, the lateral geniculate nucleus. Anatomy and Physiology 2013-06-19T00:00:00Z In the PNS, they are called the optic nerve, and in the CNS, they are the optic tract. Anatomy and Physiology 2013-06-19T00:00:00Z In the bony fishes the optic tract reaches the grey matter of the optic lobe, a part of the mid-brain, to which the so-called anterior colliculus is equivalent in the mammalian brain. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" Extending from the optic chiasm, the axons of the visual system are referred to as the optic tract instead of the optic nerve. Anatomy and Physiology 2013-06-19T00:00:00Z Another target of the optic tract is the superior colliculus. Anatomy and Physiology 2013-06-19T00:00:00Z But in these fish the optic tract has no obvious connexion with the fore-brain or with any cerebral pallium. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" Those axons are called the optic nerve as they leave the eye, but when they are inside the cranium, they are referred to as the optic tract. Anatomy and Physiology 2013-06-19T00:00:00Z Winding round the outer side of each crus is a flat white band, the optic tract. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" Ascending, however, to the reptilian brain is found an additional arrangement: a small portion of the optic tract passes to grey matter in front of the optic lobe. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" |
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