Question

Расскажите о функции двигательного нейрона ?

Answer 1

Двигательные и чувствительные нейроны совместно участвуют в образовании рефлекторной функции. Данные нейроны отходят от передних и задних корешков спинного мозга. Двигательные нейроны связаны с центробежными импульсами на орган-мишень.

Answer 2

Несет импульс от ЦНС к рабочему органу

Answer 3

The Function of a Motor Neuron

Motor neurons are a type of nerve cell that play a crucial role in the nervous system. They are responsible for transmitting signals from the central nervous system (brain and spinal cord) to the muscles, enabling voluntary movement and controlling muscle contractions. Motor neurons are part of the somatic nervous system, which is responsible for conscious control of skeletal muscles.

The main function of a motor neuron is to transmit electrical impulses called action potentials from the central nervous system to the muscles. These action potentials travel along the motor neuron's axon, a long fiber-like extension that connects the cell body to the muscle fibers it innervates. When the action potential reaches the end of the axon, it triggers the release of neurotransmitters into the neuromuscular junction, a specialized synapse between the motor neuron and the muscle fiber.

The neurotransmitter released by motor neurons is called acetylcholine, which binds to receptors on the muscle fiber and initiates a series of events that lead to muscle contraction. This contraction allows us to perform voluntary movements such as walking, talking, and grasping objects.

Motor neurons can be further classified into different types based on their location and function. The two main types are:

1. Upper motor neurons: These neurons originate in the motor cortex of the brain and transmit signals to the lower motor neurons in the spinal cord. They are involved in the planning and initiation of voluntary movements.

2. Lower motor neurons: These neurons are located in the spinal cord and directly innervate the muscles. They receive signals from the upper motor neurons and are responsible for executing the movements.

It's important to note that motor neurons are not the only cells involved in muscle control. They work in conjunction with sensory neurons, which transmit information from the muscles and other body parts back to the central nervous system, allowing for feedback and coordination of movements.

In summary, motor neurons play a vital role in the control of voluntary movements by transmitting signals from the central nervous system to the muscles. They enable us to perform a wide range of actions, from simple tasks like writing to complex movements like playing a musical instrument.