英语问答：有关人体Ten Questions About The Human BodyDirections:Answer

英语问答：有关人体
Ten Questions About The Human Body
Directions:Answer each question in the space provided.
1.How many pounds of food does an average adult eat in a day?
2.What is the largest part of the brain?
3.How many bones are there in an adult backbone?
4.How much blood does an adult heart pump every day?
5.How many breaths do you average each day?
6.How many times does the average heart beat in a lifetime?
7.What are the three bones that conduct sound to the inner ear called?
8.How many bones do babies have?
9.How many bones do adults have?
10.What color is the blood that is rich in oxygen?

1. How many pounds of food does an average adult eat in a day?
【Usually around 2-3 pounds】
2. What is the largest part of the brain?
【Cerebrum】
3. How many bones are there in an adult backbone?
【There are 33 vertebrae in the human spine. (7 cervicals, 12 thoracic, 5 lumbar, 5 that fuse into the sacrum and 4 that fuse into the coccyx.). The sacrum and coccyx are already fused into their respective bones at birth. 】
4. How much blood does an adult heart pump every day?
【The heart pumps the equivalent of 5,000 to 6,000 quarts of blood each day.】
5. How many breaths do you average each day?
【12-16 beats per minute is average so... 720-960 beats per hour, and then 17,280-23,040 per day】
6. How many times does the average heart beat in a lifetime?
【If we take the average person surviving the average age of a human life-span (approximately 80 years), then the average persons heat will be a staggering three billion times.】
7. What are the three bones that conduct sound to the inner ear called?
【Stirrup, hammer and anvil.】
8. How many bones do babies have?
【Babies have 275 bones.】
9. How many bones do adults have?
【An adult has only about 206 bones in his body because many of them fuse together】
10. What color is the blood that is rich in oxygen?
【Red that is bright is the color of the blood that is rich in oxygen.】
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