lymphatic system of female body medical background

green arm pattern person adult lymphatic system female body medical background complex vessels lymph nodes lymphoid organs primary function help maintain fluid products toxins support body's immune defenses anatomy node system lymphatic lymph vessel science spleen lymphoid human medical lymphocyte biology organ fluid skeleton medicine nervous artery blood circulation nerve vein digestion immune internal cancer cardiovascular cell health care disease structure cardiology health circulatory duct gland antibody female body thymus pain patient doctor steam xray