ipsilateral
同側
解説 Definition
同じ側に位置する、または関連する医学用語。身体の同じ側の構造や神経に関連します。
Ipsilateral means located on or affecting the same side of the body. This word is common in medicine, anatomy, and biology when doctors or researchers describe body parts, injuries, or nerve actions. It is the opposite of "contralateral."
覚え方のコツ Memory Tip
lateral「側の」を知っていると覚えやすい語です。bilateral（両側の）や unilateral（片側の）と同じ lateral 系で、ipsi- が付くと「同じ側の」になり、ipsilateral で「同側の」。対になる重要語は contralateral「反対側の」。医学では ipsilateral symptoms, ipsilateral limb のように出やすく、left/right そのものより「基準に対して同じ側か反対側か」を対で覚えると混同しにくいです。
Focus on `lateral`, which means "side," as in `bilateral` and `unilateral`. The special part is `ipsi-`, which tells you it is the same side. Learn it together with `contralateral`, because the pair is much easier to remember than either word alone.
例文
Ipsilateral neglect is a common symptom after stroke.
同側性無視は脳卒中後の一般的な症状です。
The patient showed ipsilateral weakness in the arm following the injury.
患者は損傷後、腕に同側の脱力を示しました。
Tests revealed ipsilateral sensory loss in the lower extremity.
検査により下肢の同側感覚喪失が明らかになりました。
ipsilateral の類義語・関連語
ipsilateral の語源・成り立ち Etymology
ipsilateralはラテン語ipse「そのもの・同じ」＋lateralis「側の」に由来し、医学で「体の同じ側の」を表します。later-はlateralやbilateralにも見られ、語の形どおり「同じ側だから同側」と納得できます。
Ipsilateral comes from Latin ipse, meaning "self" or "the same one," and lateralis, meaning "of the side." In medical Latin, these parts were joined to mean "on the same side." The later- root also appears in English words like lateral and bilateral.
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