telencephalon

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Anencephaly is the absence of a major portion of the brain, skull, and scalp that occurs during embryonic development. It is a cephalic disorder that results from a neural tube defect that occurs when the rostral (head) end of the neural tube fails to close, usually between the 23rd and 26th day following conception. it is accepted that children born with this disorder usually only lack a telencephalon, the largest part of the brain consisting mainly of the cerebral hemispheres, including the neocortex, which is responsible for cognition. The remaining structure is usually covered only by a thin layer of membrane— skin, bone, meninges, etc. are all lacking. With very few exceptions,infants with this disorder do not survive longer than a few hours or possibly days after their birth.

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  • central nervous system 中枢神経系 ちゅうすうしんけいけい
  • peripheral nervous system 末梢神経系 まっしょうしんけいけい
  • stroke 発作 ほっさ
  • Broca’s area ブローカ野 ぶろーかや
  • Broca’s aphasia ブローカ失語症 ぶろーかしつごしょう
  • brain のう
  • spinal cord 脊髄 せきずい
  • meninges 髄膜 ずいまく
  • cerebrospinal fluid 脳脊髄液 のうせきずいえき
  • neural tube 神経管 しんけいかん
  • prosencephalon or forebrain 前脳  ぜんのう
  • mesencephalon or midbrain 中脳 ちゅうのう
  • rhombencephalon or hindbrain 菱脳 りょうのう
  • telencephalon 終脳 しゅうのう
  • diencephalon or interbrain 間脳 かんのう
  • metencephalon 後脳 こうのう
  • myelencephalon 髄脳 ずいのう
  • brain stem 脳幹 のうかん
  • cerebellum 小脳 しょうのう
  • cerebral hemispheres 大脳半球 だいのうはんきゅう
  • cerebrum 大脳 だいのう
  • pons 脳橋 のうきょう or  きょう
  • medulla oblongata 延髄 えんずい
  • thalamus 視床 ししょう
  • epithalamus 視床上部 ししょうじょうぶ
  • hypothalamus 視床下部 ししょうかぶ
  • mammillary body 乳頭体  にゅうとうたい
  • limbic system 大脳辺縁系 だいのうへんえんけい or 辺縁系 へんえんけい
  • reptilian brain 爬虫類脳 はちゅうるいのう
  • cerebral cortex 大脳皮質 だいのうひしつ
  • gyrus  かい
  • sulcus 脳溝 のうこう or  みぞ
  • corpus callosum 脳梁 のうりょう
  • lobe よう
  • frontal lobe 前頭葉 ぜんとうよう
  • occipital lobe 後頭葉 こうとうよう
  • parietal lobe 頭頂葉 とうちょうよう
  • temporal lobe 側頭葉 そくとうよう
  • Wernicke’s area ウェルニッケ野 うぇるにっけや
  • hippocampus 海馬 かいば
  • amygdala 扁桃体 へんとうたい

Telencephalon

Consists of:

  • Cerebral cortex- Frontal, Parietal, Occipital, temporal lobes.
  • Rhinencephalon- oldest part of fore brain with olfactory and non-olfactory components. Deals with short term memory and emotion.
  • Basal ganglia- deeper grey matter such as the caudate nucleus. Involved in movement and locomotion.
  • Limbic system- llimbic lobe +  Subcortical nuclei. Is involved in maintaining normal behavior.