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mesencephalon
[ mes-en-sef-uh-lon, -luhn, mez- ]
noun
- Anatomy. the midbrain.
mesencephalon
/ 藢m蓻s蓻ns瑟藞f忙l瑟k; 藢m蓻s蓻n藞s蓻f蓹藢l蓲n /
noun
- the part of the brain that develops from the middle portion of the embryonic neural tube Nontechnical namemidbrain Compare prosencephalon rhombencephalon
Derived Forms
- mesencephalic, adjective
Other 亚洲网紅露点 Forms
- 尘别蝉路别苍路肠别路辫丑补濒路颈肠 [mes-en-s, uh, -, fal, -ik, mez-], adjective
亚洲网紅露点 History and Origins
Origin of mesencephalon1
Example Sentences
The mesencephalon or mid-brain, when looked at from the dorsal surface, shows a pair of large hollow swellings, the optic lobes or corpora bigemina.
The first is known as the cephalic, and is caused by the prosencephalon bending sharply downward, below and in front of the mesencephalon.
The single cavity seen in Amphioxus is here subdivided into three: an anterior or prosencephalon, a middle or mesencephalon, and a hinder or rhombencephalon.
In the mesencephalon fibres corresponding with those of the fillet of higher vertebrates can be seen, and there is a nucleus in the hinder part of the corpora bigemina foreshadowing the separation into corpora quadrigemina.
In the mesencephalon the alar laminae form the corpora quadrigemina; these at first are bigeminal and hollow as they are in the lower vertebrates.
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