Neurons and Nervous System Functions

The video tutorial explains neurons, the specialized cells of the nervous system, which control movements, senses, thoughts, and feelings. It describes the structure of neurons, including dendrites and axons, and their function in transmitting electrical impulses. The video also covers different types of neurons: sensory, motor, and interneurons, and their roles in the body. Additionally, it briefly compares biological neurons with artificial neural networks.

What is the primary function of the nervous system?

• To digest food

• To control the body's movements, senses, thoughts, and feelings

• To circulate blood

• To store energy

What are neurons also known as?

• Blood cells

• Bone cells

• Nerve cells

• Muscle cells

Which of the following is NOT a part of the nervous system?

• Heart

• Spinal cord

• Brain

• Neurons

Which part of the neuron receives impulses from other neurons?

• Dendrite

• Soma

• Myelin

• Axon

What is the role of myelin in neurons?

• To protect the neuron from damage

• To store neurotransmitters

• To slow down signal transmission

• To speed up signal transmission

What is the function of axons in neurons?

• To carry impulses away from the cell body

• To produce neurotransmitters

• To receive impulses

• To store energy

How fast can signals travel along a myelinated axon?

• 120 m/s

• 10 m/s

• 50 m/s

• 90 m/s

What happens at a synapse?

• Neurons merge together

• Neurotransmitters are released to stimulate other neurons

• Electrical impulses are generated

• Myelin is produced

Which type of neuron transmits signals from the central nervous system to muscles?

• All of the above

• Motor neurons

• Sensory neurons

• Interneurons

What is the role of interneurons?

• To transmit signals from the brain to muscles

• To transmit signals between sensory and motor neurons

• To transmit signals from sense organs to the brain

• To produce myelin