Certified Clinical Medical Assistant CCMA Practice Test 2025 – Comprehensive All-in-One Exam Success Guide

The correct answer is focused on the digestive system. The liver and pancreas are both key components of the digestive system, playing critical roles in the processes of digestion and metabolism. The liver is responsible for producing bile, breaking down fats, and processing nutrients, while the pancreas produces enzymes that aid in digestion and hormones that regulate blood sugar levels.

The other systems listed do not predominantly involve the liver or pancreas. The respiratory system pertains to the lungs and the process of breathing; the cardiovascular system is related to the heart and blood vessels, responsible for circulating blood; and the endocrine system involves glands that secrete hormones into the bloodstream. Since the question specifically refers to diagnostic tests targeting the liver and pancreas, it clearly aligns with the functions and roles of the digestive system.