胸
拉解剖学上，胸部拉交关多动物身体个其中一部分。
人科动物（包括人类）个胸部拉拉颈部搭腹部之间，由肋骨、脊椎搭肩带骨骼所支撑。胸部同时有乳房部分，女性个乳房作哺乳之用，因此胸部也被用做乳房个代称。
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