The Neuron

Paul Anderson explains the basics of neurons, the fundamental units of the nervous system. He discusses neuron anatomy, including the cell body, dendrites, and axon, and how they function to transmit information. The video also covers neuron classification by structure—multipolar, bipolar, unipolar, and anaxonic—and by function, detailing sensory, motor, and interneurons. The importance of myelin sheaths for rapid signal transmission is highlighted, along with the concept of synapses as connections between neurons.

What is the basic unit of the nervous system?

• Dendrite

• Synapse

• Neuron

• Axon

Which part of the neuron is responsible for receiving information?

• Dendrites

• Axon

• Synapse

• Myelin sheath

What is the function of the myelin sheath?

• To connect neurons

• To insulate the axon

• To transmit signals

• To produce neurotransmitters

How many poles does a multipolar neuron have?

• One

• None

• Two

• Three or more

Which type of neuron is most commonly found in the human body?

• Anaxonic neuron

• Unipolar neuron

• Bipolar neuron

• Multipolar neuron

What type of neurons are responsible for transmitting information to the central nervous system?

• Anaxonic neurons

• Interneurons

• Sensory neurons

• Motor neurons

Which neurons send signals to muscles and glands?

• Motor neurons

• Interneurons

• Sensory neurons

• Anaxonic neurons