五年级科学(人体的血液循环系统)

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•
Science
•
5th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
心脏的主要功能是什么?
Back
心脏的主要功能是将血液泵送到全身,提供氧气和营养素,同时带走二氧化碳和其他废物。
2.
FLASHCARD QUESTION
Front
血液循环系统的组成部分有哪些?
Back
血液循环系统由心脏、血管(动脉、静脉、毛细血管)和血液组成。
3.
FLASHCARD QUESTION
Front
运动时,心脏的作用是什么?
Back
运动时,心脏需要加快跳动,以向全身输送更多的氧气和营养。
4.
FLASHCARD QUESTION
Front
血液的主要成分是什么?
Back
血液主要由红细胞、白细胞、血小板和血浆组成。
5.
FLASHCARD QUESTION
Front
红细胞的功能是什么?
Back
红细胞的功能是运输氧气到身体各部分,并带走二氧化碳。
6.
FLASHCARD QUESTION
Front
心脏的结构包括哪些部分?
Back
心脏的结构包括左心房、右心房、左心室和右心室。
7.
FLASHCARD QUESTION
Front
动脉和静脉的区别是什么?
Back
动脉将氧气丰富的血液从心脏输送到全身,静脉则将缺氧的血液带回心脏。
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