Overview
The reflex arc is a fundamental concept in biology that describes how the nervous system responds to stimuli. It involves a series of neurons that work together to produce a quick, automatic response, which is crucial for survival. Understanding the components of a reflex arc, including sensory neur...
Key Terms
Example: Motor neurons send signals to muscles.
Example: The knee-jerk reflex occurs when the knee is tapped.
Example: Sensory neurons detect pain from a hot surface.
Example: Interneurons process information in the spinal cord.
Example: Motor neurons cause muscle contraction.
Example: The knee-jerk reflex is monosynaptic.
Related Topics
Nervous System
The complex network of nerves and cells that transmit signals throughout the body.
intermediateNeurotransmitters
Chemicals that transmit signals across synapses between neurons.
intermediateSpinal Cord
The part of the central nervous system that connects the brain to the rest of the body.
advancedKey Concepts
Sensory NeuronsInterneuronsMotor NeuronsReflex Action