Understanding Myelinated Motor Neurons

This video tutorial explains the structure and function of a myelinated motor neuron. It covers the roles of dendrites, cell body, axon, axon terminals, myelin sheath, Schwann cells, and nodes of Ranvier. The tutorial highlights how signals are transmitted through neurons, emphasizing the importance of myelination in speeding up impulse transmission. It also distinguishes between myelinated (white matter) and unmyelinated (gray matter) neurons.

What is the primary function of a neuron in the nervous system?

• To transmit information

• To store information

• To protect the brain

• To produce hormones

What is the main role of dendrites in a neuron?

• To transmit signals to other neurons

• To store genetic information

• To produce neurotransmitters

• To receive incoming signals

What is the function of the cell body in a neuron?

• To house the nucleus

• To insulate the axon

• To release neurotransmitters

• To transmit signals

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

• To store energy

• To transmit signals

• To produce myelin

• To receive signals

What role do axon terminals play in neuron communication?

• They insulate the axon

• They release neurotransmitters

• They transmit signals to the cell body

• They receive signals from other neurons

What is the purpose of the myelin sheath?

• To produce neurotransmitters

• To store nutrients

• To insulate the axon

• To transmit signals

Which cells are responsible for producing the myelin sheath?

• Dendritic cells

• Axon terminals

• Schwann cells

• Neurotransmitter cells

What is the function of the nodes of Ranvier?

• To slow down signal transmission

• To store neurotransmitters

• To increase the speed of impulse transmission

• To protect the axon

What is the difference between myelinated and unmyelinated neurons?

• Myelinated neurons can regenerate

• Unmyelinated neurons are faster at transmitting signals

• Unmyelinated neurons are also known as white matter

• Myelinated neurons transmit signals slower

What type of neurons are referred to as gray matter?

• Unmyelinated neurons

• Motor neurons

• Myelinated neurons

• Sensory neurons