The correct answer is letter A. Pain receptor - tissue injury. Nociception refers to the processing of harmful stimuli in the nervous system. The nociceptors are also known as "Pain receptor" that responds only to tissue damages cause by either mechanical, thermal stimulation.
I would say something that makes you use the spinal cord the most (if you catch my drift)...
Answer:
muscular endurance because it takes time for your muscle to get used to a new routine
Explanation:
