Which of the following are key symptoms of multiple sclerosis related to sensory function?

Numbness and tingling are key symptoms associated with multiple sclerosis (MS), particularly regarding sensory function. MS is an autoimmune disorder that affects the central nervous system, leading to the demyelination of nerve fibers. This demyelination can disrupt the normal flow of electrical impulses along the nerves, resulting in sensory disturbances such as numbness and tingling (often described as "pins and needles") in various parts of the body. These sensations can occur in limbs and may affect the face as well, reflecting the disease's impact on the sensory pathways.

The other symptoms listed are common in different conditions or contexts but do not directly represent sensory symptoms of MS in the same way. While severe headache and blurred vision can occur, they may not be specific to sensory function in MS. Loss of coordination and slurred speech relates more to motor function and cognitive processing rather than purely sensory symptoms. Similarly, chest pain and fatigue are symptoms that could arise from various health issues and are not specific indicators of sensory function impairment due to MS. Therefore, numbness and tingling stand out as the hallmark symptoms directly linked to sensory disruptions in multiple sclerosis.