Neuromuscular Spindle

Neuromuscular spindles are those organs consisting of a special tissue matrix, distinguished by a special structure - its fibers accumulate at a certain relatively pentral position in the subacranial region.

They convert the total number of nerve fibers entering the muscles themselves into characteristic tension, forming the mechanism of synaptic interactions between nerve endings and muscles. Their main and main functions are:

1. Regulation of muscle tension by transmitting signals about changes in muscle length due to the narrowing or expansion of the spindle threads, which contributes to excitation and muscle contraction; 2. Distribution of force loads between individual muscle fibers to prevent destruction of their structure; 3. Determining the moment of muscle relaxation to avoid excessive contraction and



Neuromuscular spindles are one of the key structures of the human nervous system. They are responsible for many important functions, from movement coordination to reflex activity. First, the neuromuscular spindles act as sensory structures for muscles, allowing us to evaluate the force and direction of movement. This allows us not only to coordinate movements, but also to develop training skills to achieve more effective results.

However, in addition to its role in motor coordination, the neuromuscular spindle is also involved in the body's reflex actions, such as breathing, blinking, and even pupil dilation. Neuromuscular spindles are located in the muscles near them



The neuromuscular (or muscle-articular) spindle is a special motor apparatus that provides muscle contraction and regulates muscle motor activity in accordance with the body’s needs. It is an important component of the nervous system and plays a key role in the transmission of nerve impulses from the central nervous system to the muscles.

Neuromuscular spindles are thin bundles of muscle fibers surrounded by neuromuscular fibers. They are located along the entire length of the muscles of the body and are responsible for regulating muscle function. When a nerve impulse is transmitted from the central nervous system through the neuromuscular synapse, acetylcholine is released, which interacts with a special spindle protein - troponin, located on the surface of the muscle fiber. This causes the spindle to take on a curved shape that matches the tone of the muscle. When the action potential reaches a certain strength, the muscle contracts and the tension in the spindle changes, returning it to its original position.