Final answer:
Back injury or back pain is usually the result of a number of factors, which is true. Reasons for this include muscle strain from lifting improperly, pregnancy-related strain, and additional causes such as severe brain injuries or spinal cord injuries.
Step-by-step explanation:
Back injury or back pain is usually the result of a number of factors: true. The back is an intricate structure comprised of muscles, vertebrae, and intervertebral discs that all contribute to its function. Back muscles are tasked with exerting large forces which are supported by the spinal column. When strain is placed on the back through actions such as lifting objects improperly, it can result in muscle strain or damage to discs and vertebrae due to the increased force exerted.
Pregnant women often suffer from back strain late in pregnancy due to the extra weight and altered center of gravity which places additional strain on the back muscles. Moreover, events like a broken bone or spending long hours looking down at devices can contribute to neck pain and extend to back issues. Spinal cord injuries can have serious repercussions such as paralysis. In contrast, a sprain does not usually involve the muscles directly, as it is a tear in the ligaments, while conditions like a severe brain injury can damage neurons, impacting both physical and mental function without primarily affecting muscles.