The Ultimate Human Brain Quiz

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Questions and Answers

Which organ serves as the center of the nervous system in animals?

Heart
Lungs
Stomach
Brain (correct)

Where is the brain located?

In the back
In the abdomen
In the chest
In the head (correct)

How many neurons are estimated to be in the cerebellum of a human?

10-15 billion
55-70 billion (correct)
1-5 billion
20-25 billion

How do neurons typically communicate with one another?

Through electrical signals (C) Signup and view all the answers

What allows brains to exert centralized control over a body's organs?

Axons (A) Signup and view all the answers

What is the role of the cerebral cortex in a human's brain?

The cerebral cortex contains billions of neurons and is responsible for various functions such as thinking, perception, and voluntary movement. Signup and view all the answers

What are axons and what is their function in the brain?

Axons are long fibers that connect neurons in the brain. They carry action potentials, or electrical signals, to other parts of the brain or body. Signup and view all the answers