Nerve Cells and Their Essential Role in the Nervous System

The video explains neurons, the specialized cells of the nervous system, which control body functions. Neurons have unique structures with processes like dendrites and axons that transmit electrical impulses. Synapses and neurotransmitters facilitate communication between neurons. Different types of neurons, such as sensory, motor, and interneurons, have specific roles. The video concludes with a humorous note on artificial neural networks.

What is the primary function of the nervous system?

• To digest food

• To control body movements and processes

• To circulate blood

• To store energy

What are the extensions that emerge from a neuron's cell body called?

• Fibers

• Processes

• Filaments

• Tendrils

Which part of the neuron receives impulses from other neurons?

• Dendrites

• Axons

• Myelin

• Soma

What is the role of myelin in neurons?

• To speed up signal transmission

• To store neurotransmitters

• To protect the neuron from damage

• To slow down signal transmission

What happens at a synapse?

• Neurotransmitters are released

• Axons are created

• Signals are stored

• Neurons merge together

How do neurotransmitters affect muscle cells?

• They cause muscles to relax

• They cause muscles to contract

• They dissolve muscle tissue

• They have no effect on muscles

Which type of neuron transmits signals from sense organs to the brain?

• Central neurons

• Sensory neurons

• Motor neurons

• Interneurons

What is the primary role of motor neurons?

• To store information

• To connect sensory neurons

• To transmit signals to muscles

• To transmit signals to the brain

What is the function of interneurons?

• To transmit signals to the brain

• To transmit signals to muscles

• To transmit signals between sensory and motor neurons

• To store neurotransmitters

What is the common job of all neurons?

• To produce energy

• To carry information throughout the body

• To digest food

• To store memories