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
Ectoparasites are those which live on skin or attach to hair follicles. The following listed external parasites are those that can most often affect rats. Lice (phylum: Arthropoda, class: Insecta ) are of two orders, the mallophaga which are of a species that bite or chew, and the order of Anoplura (family Pediculidae) which are a species that suckle blood.