| 单词 | foramen magnum |
| 例句 | The shape of the opening at the base of its skull—the foramen magnum—suggested Sahelanthropus balanced its head on top of a vertical neck, similar to upright walkers such as today’s humans. Human ancestors were walking upright 7 million years ago, ancient limb bone suggests 2022-08-24T04:00:00Z On the base of the skull, the occipital bone contains the large opening of the foramen magnum, which allows for passage of the spinal cord as it exits the skull. Anatomy and Physiology 2013-06-19T00:00:00Z When his brain swelled, the portion of his cerebellum that was herniating through the foramen magnum became compressed and presented with sever occipital headaches. Think Like a Doctor: The Painter’s Headaches 2016-11-03T04:00:00Z They resemble moorei in the shape and size of the tympanic bullae, and are intermediate in the size and shape of the foramen magnum. The Pocket Gophers (Genus Thomomys) of Utah, Vol. 1 No. 1 Kansas University Publications. 2012-03-19T02:00:23.340Z The basal line of the cranium from the lower border of the foramen magnum to the incisor border of the palate is nearly straight. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 6 "Home, Daniel" to "Hortensius, Quintus" 2012-03-15T02:00:32.250Z B to B' Postpalatal length.—From posterior margin of hard palate to anterior margin of foramen magnum. Speciation and Evolution of the Pygmy Mice, Genus Baiomys 2011-12-15T03:00:11.933Z On either side of the foramen magnum is an oval-shaped occipital condyle. Anatomy and Physiology 2013-06-19T00:00:00Z The exoccipitals extend around the sides of the foramen magnum and meet dorsally. A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America) 2011-09-25T02:00:14.967Z The team took into account the overall body size of each individual by measuring the foramen magnum - the hole in the base of the skull that attaches to the spinal column. Longer winters led to bigger eyes 2011-07-27T07:26:31Z Cranial measurements were taken as follows: Basilar length.—From the anteriormost inferior border of the foramen magnum to a line connecting the posteriormost margins of the alveoli of the first upper incisors. Subspeciation in Pocket Gophers of Kansas, [KU. Vol. 1 No. 11] 2011-07-09T02:00:11.847Z The placement of a hole at the base of the skull, known as the foramen magnum, also might suggest Ardi as an upright walker, and thus perhaps a solid hominin. Was "Ardi" not a human ancestor after all? New review raises doubts 2011-02-16T22:15:00.293Z Located at the anterior-lateral margin of the foramen magnum is the hypoglossal canal. Anatomy and Physiology 2013-06-19T00:00:00Z The opisthotic lies between the epiotic and the lateral occipital with which it ultimately fuses; in some birds, e.g. in Larus, it extends far enough to help to bound the foramen magnum. Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" 2010-12-20T17:12:05.780Z Tympanic bulla smaller than foramen magnum; hind foot more than 74; geographic range wholly in United States. A Synopsis of the North American Lagomorpha The foramen magnum, occipital condyles, and exoccipitals show no unusual features. Systematic Status of a South American Frog, Allophryne ruthveni Gaige In posterior view the notochordal canal and foramen magnum are confluent with each other, and of great size relative to the skull as a whole. A New Order of Fishlike Amphibia From the Pennsylvanian of Kansas The vertebral arteries enter the cranium through the foramen magnum of the occipital bone. Anatomy and Physiology 2013-06-19T00:00:00Z The spinal cord extends from the foramen magnum to the level of the disc between the first and second lumbar vertebræ. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. Tympanic bulla as large as foramen magnum; hind foot less than 74; geographic range limited to southern edge of Mexican tableland at high elevationsRomerolagus diazi, p. A Synopsis of the North American Lagomorpha Occipital foramen: the opening in the occiput, opposed to a similar opening in the prothorax: = foramen magnum. Explanation of Terms Used in Entomology On the other hand, an adult animal of pigmy size might be expected to have large orbits, large otic capsules and a large foramen magnum. A New Order of Fishlike Amphibia From the Pennsylvanian of Kansas Openings here include the large foramen magnum, plus the internal acoustic meatus, jugular foramina, and hypoglossal canals. Anatomy and Physiology 2013-06-19T00:00:00Z Sudden death may occur from crowding of the cerebellum into the foramen magnum. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. Above the foramen magnum the median supra-occipital bone completes what is called the occipital arch. Text Book of Biology, Part 1: Vertebrata The pointed end was pushed through the foramen magnum, and the pole was then planted near the gate of the town. The Tinguian Social, Religious, and Economic Life of a Philippine Tribe A, palate process of upper jawbone; B, zygoma, forming zygomatic arch; C, condyle for forming articulation with atlas; D, foramen magnum; E, occipital bone. A Practical Physiology The large foramen magnum is located at the midline of the posterior fossa. Anatomy and Physiology 2013-06-19T00:00:00Z The vertebral artery passes through the vertebral foramen in the cervical vertebrae and then through the foramen magnum into the cranial cavity to supply blood to the brain and spinal cord. Anatomy and Physiology 2013-06-19T00:00:00Z |
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