Which membranes line the passageways that open to the exterior of the body, including those of the respiratory, digestive, reproductive, and urinary systems in the body?
A. cutaneous
B. basement
C. mucous
D. serous
Answer:C
Which membranes line the passageways that open to the exterior of the body, including those of the respiratory, digestive, reproductive, and urinary systems in the body?
A. cutaneous B. basement C. mucous D. serous