PATHOLOGY

Detailed explanation-1: -Adult heartworms are found in the heart, pulmonary artery, and adjacent large blood vessels of infected dogs.

Detailed explanation-2: -The mosquito plays an essential role in the heartworm life cycle. Adult female heartworms living in an infected dog, fox, coyote, or wolf produce microscopic baby worms called microfilaria that circulate in the bloodstream.

Detailed explanation-3: -“Heartworm” describes a condition where parasites live and reproduce in the host’s heart. The heartworms themselves can be up to a foot long and are passed by mosquitoes, who carry the larvae from dog to dog.