GED Science TestLife ScienceMedium
A medical student is studying the human nervous system. They learn that a specific neuron type is responsible for transmitting information from sensory receptors (like those in the skin or eyes) towards the central nervous system. Which term best describes this type of neuron?
- AMotor neuron
- BSensory neuron
- CNeuroglia
- DInterneuron
Show answer & explanationAnswer & explanation
Correct answer: B. Sensory neuron
Sensory neurons, also known as afferent neurons, are responsible for carrying sensory information from external stimuli or internal conditions to the central nervous system for processing.
Why the other options are wrong
- A. Motor neurons (efferent neurons) transmit signals from the CNS to muscles and glands.
- C. Neuroglia (glial cells) are support cells for neurons, not neurons themselves.
- D. Interneurons connect sensory and motor neurons within the CNS.
Sensory Neuron (Afferent Neuron)
A type of neuron that transmits sensory information from sensory receptors towards the central nervous system.
- Carries signals from periphery to CNS
- Associated with sensory organs (skin, eyes, ears)
- Also called afferent neurons
Memory trick: SAME: Sensory Afferent, Motor Efferent