Question

A doctor diagnoses a patient with a disease called polymyositis. The patient tires quickly when walking, has difficulty swallowing, and struggles to raise his arms above his head. This disease primarily affects which type of tissue? Brain Epithelial Blood Muscle

Answer 1

It primarily affects the muscle (according to my research).

Answer 2

You often feel tired in your muscles,
You use muscle to swalow,
You use a lot of muscle to raise your arms above your head.
According to my research,  I say muscle.
I hope this helps!