They should be concerned about his integument system. Skeletal would be bones respiratory would be breathing muscular would be muscle soreness.
Anemia is a breakdown in this sophisticated transportation system, resulting in your body not getting enough oxygen. Internal medicine physician Gary Conley, MD, explains that it occurs for one of three reasons: Your body doesn't produce enough red blood cells.
(BRAINLIEST PLEASE)
Answer:
the muscle tissues of arteries are thicker than the muscle tissues of veins.
Explanation:
the muscle tissues of arteries are thicker than those of veins because they carry oxygenated bloody to all the body parts(except the pulmonary artery)