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What is a neuron?

• A cell that transmits electrical impulses

• A part of the brain responsible for memory

• A type of muscle cell found in the heart

• A blood cell responsible for oxygen transport

Approximately how many neurons are in the human brain?

• Around 86 million

• Around 86 billion

• Around 8.6 million

• Around 8.6 billion

What is the primary function of an axon in a neuron?

• Receives impulses from other neurons

• Contains the genetic material of the cell

• Transmits electrical impulses from one neuron to the next

• Controls the growth and development of the cell

What is the primary function of a dendrite in a neuron?

• Transmits impulses to other neurons

• Contains the nucleus of the cell

• Receives impulses from other neurons or organs

• Speeds up the conduction of electrical impulses

What is the main role of the myelin sheath in a neuron?

• To receive electrical impulses from other cells

• To transmit electrical impulses to target organs

• To contain the cell's genetic material

• To help speed up the conduction of electrical impulses

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