This classification is based on the way these drugs are used for the treatment of a particular condition. Inotropic, Chronotropic and Dromotropic are different types of cardiac drugs. This classification is based on the way these drugs are used for the treatment of a particular condition. Inotropic drugs affect the force of cardiac contraction. Chronotropic drugs affect the heart rate. Dromotropic drugs affect conduction velocity through the conducting tissues of the heart.
ectoparasite noun a parasite which lives on the skin or outer surface of its host but feeds by piercing the skin. Compare endoparasite
A rare and curious animal, the eastern long-beaked echidna belongs to an incredibly distinct group of mammals, the monotremes. Like all mammals, the monotremes (the echidnas and the platypus), have fur and produce milk to nourish their young, but uniquely, these mammals lay eggs rather than giving birth to live young .