Final answer:
Muscle spindles and Golgi tendon organs provide sensory feedback about muscle length and tendon forces. They detect muscle stretch and tension, helping to regulate muscle contraction. This information is sent to the cerebellum, which coordinates muscle activity.
Step-by-step explanation:
Muscle spindles and Golgi tendon organs are sensory receptors that provide feedback about muscle length and tendon forces. Muscle spindles detect muscle stretch, while Golgi tendon organs detect muscle tension. These sensors, along with other somatosensory receptors found in muscles and joints, help regulate muscle contraction to prevent overstretching or tearing. The information from these sensory receptors is sent to the cerebellum, which coordinates muscle contraction.