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单词 cranial nerves
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cranial nerves
Pertaining to the cranium or skull; strictly, pertaining to the cranium proper or brain-case, as in cranial bones. cranial index [index n. 10b] , the ratio of the width of the skull to its length (now usually expressed as a percentage). cranial nerves: the great nerve-trunks arising from the brain and passing through openings in the cranium; = cerebral adj. nerves.
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the world > life > the body > structural parts > bone or bones > skull > parts of skull > [adjective] > top of skull
cranial1800
calvarial1866
the world > life > the body > structural parts > bone or bones > skull > skull measurement > [noun]
cephalic index1866
index1866
cranial index1868
orbital index1877
1800 Med. & Physical Jrnl. 3 138 Imperfection of the cranial bones was similar to the case before related.
1840 G. V. Ellis Demonstr. Anat. 21 The second or optic nerve, the largest of the cranial nerves, except the fifth.
1864 Reader 5 Mar. The cranial capacity of the largest chimpanzee measured is 27½ cubic inches, that of the smallest man being 55.
1868 Anthropol. Rev. 6 391 A Dalecarlian has ·75, and an ‘old Norseman’ from Lough Larne C. Antrim ·73 as the cranial index.
1901 N. C. Macnamara Hunterian Oration Royal Coll. Surg. 15 When the cranial index rises above 80, the head is called brachycephalic, a broad head; when it falls below 75 the term..long head is applied to it.
1901 N. C. Macnamara Hunterian Oration Royal Coll. Surg. 15 Assuming the length of the cranium to be 100, the width is expressed as a fraction of it, and is known in the living subject as being the cephalic, and in the bare skull as the cranial index.
1908 A. Wilson Educ., Personality & Crime xv. 125 The Cranial Index is found by multiplying the width of the skull by 100, and dividing by the length.
1927 H. Peake & H. J. Fleure Priests & Kings vi. 122 One skull..is somewhat broad-headed, having a cranial index of 80·9.
1969 A. H. Schultz Life of Primates xiii. 211 The breadth of the brain, expressed as a percentage of its length, which is the widely discussed ‘cranial index’ of anthropologists, varies individually in a large series of fully grown orang-utans.
extracted from cranialadj.
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更新时间:2024/11/11 0:48:58