In addition to hearing, maintaining the body's ____________________ is an important function of the ears

Multiple sclerosis is associated with autoimmune attack of which glial cell?

a. Schwann cell b. Oligodendrocyte c. Microglia d. Astrocyte

Infection with _____ is a risk factor for developing peptic ulcers

A) salmonella B) H. pylori C) E. coli D) gonorrhea