| 单词 | prosencephalon |
| 释义 | ‖ prosencephalon Anat.|prɒsɛnˈsɛfəlɒn|
Pl. -a.
[mod.L., f. Gr. πρός toward (but here used as if = πρό, pro-2 2) + ἐγκέϕαλον, -ος brain, encephalon.]
The anterior part of the brain, consisting of the cerebral hemispheres and other structures; sometimes including the olfactory lobes (rhinencephalon) and the optic thalami and adjacent parts (thalamencephalon); the fore-brain.
1846Owen Anat. Vert. i. 181 note, Influenced by the inapplicability of the term ‘hemispheres’..I shall apply the term ‘prosencephalon’ to the constant division of the brain in question, and prosencephalic lobes or prosencephala to its commonly distinct moieties. 1856Todd & Bowman Phys. Anat. II. 600 The prosencephalon soon increases in size, and becomes much larger than all the others. 1880Günther Fishes 99 The prosencephalon, mesencephalon, and metencephalon are contiguous.
Hence prosencephalic |prɒsɛnsɪˈfælɪk| a., pertaining to or connected with the prosencephalon: applied esp. to parts of the skull in animals.
1846[see above]. 1854Owen Skel. & Teeth in Orr's Circ. Sc. I. Org. Nat. 251 The rhinencephalic fossa..in the lion..is defined by a well-marked angle..from the prosencephalic compartment. 1880Günther Fishes 86 Prosencephalic arch, composed of pre-sphenoid, orbito-sphenoid, frontal and postfrontal. |
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