Reciprocal innervation

Reciprocal Innervation is a fundamental concept in neuroscience and physiology that refers to the process of muscles on one side of a joint being relaxed to accommodate contraction on the other side of the joint. This process is also known as Sherrington's law after the British physiologist Charles Sherrington who first described this phenomenon.

Overview

Reciprocal innervation is a mechanism that is essential for smooth and coordinated muscle movements. It involves the simultaneous constriction of one muscle and the relaxation of its opposing muscle. This is achieved through the actions of motor neurons and interneurons in the spinal cord.

Mechanism

The process of reciprocal innervation begins when a motor neuron in the spinal cord sends a signal to a muscle, causing it to contract. At the same time, an inhibitory interneuron in the spinal cord sends a signal to the opposing muscle, causing it to relax. This allows for smooth, coordinated movements.

Clinical Significance

Understanding the concept of reciprocal innervation is crucial in the field of rehabilitation medicine. It is often used in physical therapy and occupational therapy to improve motor control and coordination in patients with neurological disorders such as stroke and spinal cord injury.

See Also

• Motor neuron
• Interneuron
• Sherrington's law
• Neuroscience
• Physiology

References

Reciprocal innervation Resources
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