How many neurons are in the human brain?
The human brain contains about 86 billion neurons.
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- Which bone isn't connected to any other bone?
“The hyoid bone in the neck is the only bone not connected to another bone.”
Reference: Cleveland Clinic
More from this shelf
How many bones are in the human body?
Adults have 206 bones, while babies are born with around 300 that later fuse together.
What is an "otter tail"?
The Labrador Retriever has a thick, rounded, tapering "otter tail" that works like a rudder, helping the dog steer while it swims.