Question

classify the following characteristics as being descriptive of afferent neurons, efferent neurons, or interneurons. transmit information away from the cns cell body and long peripheral process of the axon are in the pns transmit information toward the cns axons terminate on muscles, glands, or other neurons contain sensory receptors at their peripheral endings least abundant type of neuron lie entirely within the cns second most abundant type of neuron have a wide range of physiological properties, shapes, and functions function as integrators and signal changers cell body, dendrites, and small segment of axon are in the cns account for 90% of all neurons afferent neurons transmit information toward the cns efferent neurons transmit information away from the cns interneurons

Explanation:

Afferent neurons carry sensory information to the central - nervous system (CNS), efferent neurons carry information away from the CNS, and interneurons are located entirely within the CNS. We classify based on these basic functions and anatomical locations.

• "Transmit information toward the CNS": Afferent neurons. They bring in sensory information from the body to the CNS.
• "Cell body and long peripheral process of the axon are in the PNS": Afferent neurons. The cell bodies of afferent neurons are often in ganglia outside the CNS in the peripheral nervous system (PNS).
• "Transmit information away from the CNS": Efferent neurons. They send commands from the CNS to muscles, glands, etc.
• "Axons terminate on muscles, glands, or other neurons": Efferent neurons. They are motor - related and control effectors.
• "Contain sensory receptors at their peripheral endings": Afferent neurons. These receptors detect stimuli in the environment.
• "Least abundant type of neuron": Efferent neurons.
• "Lie entirely within the CNS": Interneurons. They are involved in processing information within the CNS.
• "Second most abundant type of neuron": Interneurons.
• "Have a wide range of physiological properties, shapes, and functions": Interneurons. They perform various integrative functions.
• "Function as integrators and signal changers": Interneurons. They modify and integrate neural signals.
• "Cell body, dendrites, and small segment of axon are in the CNS": Interneurons.
• "Account for 90% of all neurons": Interneurons.

Answer:

• Transmit information toward the CNS: Afferent Neurons
• Cell body and long peripheral process of the axon are in the PNS: Afferent Neurons
• Transmit information away from the CNS: Efferent Neurons
• Axons terminate on muscles, glands, or other neurons: Efferent Neurons
• Contain sensory receptors at their peripheral endings: Afferent Neurons
• Least abundant type of neuron: Efferent Neurons
• Lie entirely within the CNS: Interneurons
• Second most abundant type of neuron: Interneurons
• Have a wide range of physiological properties, shapes, and functions: Interneurons
• Function as integrators and signal changers: Interneurons
• Cell body, dendrites, and small segment of axon are in the CNS: Interneurons
• Account for 90% of all neurons: Interneurons