Nerve Cells and Their Functions

The video explains the structure and function of neurons, which are nerve cells that transmit electrical impulses in the body. It covers the components of a neuron, such as the axon, dendrites, and myelin sheath, and how they contribute to signal transmission. The process of how the brain sends signals to move a thumb is detailed, highlighting the role of action potentials and neurotransmitters. The video concludes with a message from the Neuron team, encouraging viewers to engage with their content.

What is the primary function of nerve cells in the human body?

• To digest food

• To produce hormones

• To transmit electrical impulses

• To store energy

Approximately how many nerve cells are present in the human brain?

• 100 thousand

• 10 million

• 86 billion

• 1 trillion

Which part of the nerve cell is responsible for transmitting electrical signals to the next cell?

• Cell body

• Dendrites

• Axon

• Nucleus

What is the role of dendrites in a nerve cell?

• To transmit signals to other cells

• To regulate cell growth

• To receive signals from other cells

• To store genetic material

What does the nucleus of a nerve cell contain?

• Electrical impulses

• Myelin sheath

• Neurotransmitters

• Genetic material

How fast can signals travel in nerve cells with myelin sheaths?

• 200 meters per second

• 120 meters per second

• 50 meters per second

• 10 meters per second

What initiates the movement of the thumb according to the video?

• A chemical reaction

• An action potential

• A reflex arc

• A muscle contraction

What is a synapse?

• A chemical messenger

• A part of the brain

• A type of nerve cell

• A gap between two nerve cells

What role do neurotransmitters play in nerve cells?

• They release hormones

• They transmit electrical signals

• They conduct signals between nerve cells

• They store energy

What inspired the team to name themselves 'Neuron'?

• The speed of nerve signals

• The structure of nerve cells

• The process of receiving, processing, and conveying information

• The number of nerve cells in the brain