Proprioceptors are specialized sensory receptors located in muscles, tendons, and joints. They provide the brain with information about body position, movement, and muscle tension. This feedback helps maintain balance and coordination during physical activities. These receptors play a crucial role in the body's ability to perform tasks without constantly looking at limbs. For example, when you close your eyes and touch your nose, proprioceptors help you know where your arm is in space. This process is essential for activities like sports, dance, and everyday movements, ensuring smooth and controlled actions.