BBB - The Neuron Lesson

Learning Target:

  • Identify the basic processes and systems in biological bases of behavior, including parts of the neuron. 

AP psychology course and exam description, effective fall 2020. (n.d.). https://apcentral.collegeboard.org/media/pdf/ap-psychology-course-and-exam-description.pdf

Neurons

3 Types of Neurons: Sensory, Motor, InterneuronsThe communication in the nervous system that guides our feelings, thoughts, and emotions is due to millions of small nerves called neurons. Neurons communicate information in both electrical and chemical forms and are highly specialized. They vary in size and shape depending on their function. Did you know that these seemingly "insignificant" structures can be one of the probable causes of depression, Parkinson's disease, and even Alzheimer's disease? For the AP exam, there are three types of neurons you should be aware of.

1. Sensory Neurons

Sensory neurons are also called afferent neurons and convey information about the environment received through our senses. For example, when we receive sensory stimuli such as vision, hearing, touch, taste, and so forth that information is carried to the brain through sensory neurons.

2. Motor Neurons

Motor neurons, also called efferent neurons, communicate information from the brain to the rest of the body. Any action you take such as turning the page of a book, running, or blinking your eyes will activate motor neurons.

3. Interneurons

Interneurons communicate information between neurons. They act as a go-between for the motor and sensory neurons who do not communicate directly. Most of the neurons in the human system are interneurons.

Please view the presentation on the basics of the neuron below.

*Prior to viewing the presentation, download the handout "Neuron Notes Links to an external site." to take notes. Pay close attention to the parts and functions of a neuron as you will be asked to complete a comparison of a neuron to an object that you are not anticipating!

After viewing the presentation and taking notes, practice your knowledge of the neuron with the activity below.

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