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midbrain

[ mid-breyn ]

noun

, Anatomy.
  1. the middle of the three primary divisions of the brain in the embryo of a vertebrate or the part of the adult brain derived from this tissue; mesencephalon.


midbrain

/ ˈmɪdˌbreɪn /

noun

  1. the nontechnical name for mesencephalon
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


midbrain

/ mĭdbrān′ /

  1. The middle part of the vertebrate brain. In most animals except mammals, the midbrain processes sensory information. In mammals, it serves primarily to connect the forebrain with the hindbrain.
  2. Compare forebrain


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Word History and Origins

Origin of midbrain1

First recorded in 1870–75; mid- + brain
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Example Sentences

Dopamine then hits in the midbrain, which urges them to approach the crying child.

The first dopamine-releasing axons grow from the midbrain to the prefrontal cortex before birth.

During the game, an area deep inside the midbrain lights up more brightly in teens than in kids or adults.

Yet more than 50 years ago, studies on cats with cortical blindness on one side showed that it is possible to restore some of the lost sight by cutting a connection deep in the cat’s midbrain.

The midbrain plays an important part in people’s motivation to seek food or friends.

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