Your right lung normally has three lobes, while your left has two.

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Heart and lungs
Human Body

3 + 2

Your right lung normally has three lobes, while your left has two.

Your right lung normally has three lobes, while your left lung has two. This asymmetry reflects the arrangement of organs inside the chest, including space occupied by the heart. Lobes are anatomical subdivisions, not separate lungs operating independently.

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Human Skeleton on Exhibit at The Museum of Osteology, Oklahoma City, Oklahoma.
Human Body

300

Babies are born with about 300 bones, but adults have only 206.

Babies have more separate skeletal pieces than adults, often described as about 300 bones compared with the usual adult count of 206. The newborn number is approximate because developing bone and cartilage are not always counted the same way.

zh:尖沙咀香港科學館2010年7月, zh:骨骼展覽
Human Body

1 cm

You are about a centimeter taller in the morning than at night.

People are usually slightly taller after a night lying down because spinal discs regain fluid when unloaded. Around a centimeter is a useful rough illustration, not a fixed daily change for everyone.

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