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身體器官與功能-骨骼、肌肉與神經系統

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本段影片將學習骨骼、肌肉與神經系統的功能。

人體全身共有206塊骨頭,骨骼系統的功能分為以下5種: 1.支持_維持身體直立姿勢與正常外觀 2.保護_保護內部精細組織 3.運動_骨骼可作為槓桿產生動作 4.儲存_骨細胞間質含磷酸鈣和碳酸鈣 5.製造血球_紅骨髓可製造血球

在骨頭與骨頭的結合處,我們稱它為關節,關節主要是要緩沖的一個作用,以避免骨頭與骨頭之間互相的摩擦。 關節依照移動的程度可分為三種:不動關節/微動關節/可動關節

肌肉系統則佔人體種量40~50%,且人體有500塊以上的肌肉。肌肉分為骨骼肌、平滑肌、心肌三類肌肉,其功能只要為維持姿勢、運動、產生熱能.

學習本影片後將能精確掌握骨骼系統的功能、關節移動的程度分類、肌肉與小腦的功能等內容。

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