Frequent question: What does a spinal reflex mean?

What’s the purpose of a spinal reflex?

Spinal reflexes contribute to normal muscle tone and mediate a number of simple motor responses (e.g. withdrawal from a painful stimulus). The spinal cord also contains more complex neuronal networks called central pattern generators (CPGs).

What are some spinal reflexes?

Spinal reflexes include the stretch reflex, the Golgi tendon reflex, the crossed extensor reflex, and the withdrawal reflex.

How does a spinal reflex work?

In a reflex, the information is first detected in the sensor and travels along sensory neurons to the spinal cord. Once the action potential reaches the spinal cord, the information is transmitted across the synapse to the motor neuron.

What is the simple spinal reflex?

Simple spinal reflexes are reflex arcs that are programmed in the spinal cord and typically involve three neurons.

What is a spinal reflex and why is it important?

Spinal reflex control allows your body to react automatically without the effort of thought. The reflex arc is a nerve pathway involved in a reflex action. In your vertebrae, most sensory neurons do not pass straight to the brain but synapse in the spinal cord.

What is an example of Polysynaptic reflex?

An example of a polysynaptic reflex arc is seen when a person steps on a tack—in response, their body must pull that foot up while simultaneously transferring balance to the other leg.

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What is an example of a Monosynaptic reflex?

A simple reflex that involves transmission of information from a sensory neuron to the appropriate motor neuron across a single synapse in the spinal cord. The knee-jerk reflex action is an example of a monosynaptic reflex (see stretch reflex). Compare polysynaptic reflex.