Topics: Pharynx, trachea, heart, Tunica Adventitia, Epicardium, Pericardium, Tunica Media, Myocardium, Tunica Intima, Endocardium, cardiovascular system, Muscular arteries, Arterioles, Capillaries, Fenestrated capillaries, Discontinuous capillaries, Muscular veins, veins, Venules, Vein Valve, Thymus, thymus gland, cortex, medullar, spleen, Pancreas, exocrine pancreas, Endocrine Pancreas, liver, Liver Lobule, Hepatocytes, Gallbladder