Nervous Tissue: The Neuron—Which of the following is NOT a type of neuron?

• A. Interneuron (association neuron)
• B. Sensory (afferent) neuron
• C. Motor (efferent) neuron
• D. Epithelial neuron

Answer: (D)

Verified step by step guidance

1. Step 1: Understand the types of neurons by their functions and locations. Neurons are specialized cells that transmit nerve impulses and are generally classified into three main types: sensory (afferent) neurons, motor (efferent) neurons, and interneurons (association neurons).
2. Step 2: Define each neuron type: Sensory neurons carry impulses from sensory receptors toward the central nervous system; motor neurons transmit impulses from the central nervous system to effectors like muscles or glands; interneurons connect neurons within the central nervous system and facilitate communication between sensory and motor neurons.
3. Step 3: Recognize that 'Epithelial neuron' is not a recognized type of neuron. Epithelial cells form the lining of surfaces and cavities in the body and are not involved in transmitting nerve impulses.
4. Step 4: Compare the options given and identify that 'Epithelial neuron' does not fit the classification of neurons based on their function or structure.
5. Step 5: Conclude that the correct answer is the option that is NOT a type of neuron, which is 'Epithelial neuron,' because it is a type of epithelial cell, not a neuron.