The efferent branchial arteries all empty into the dorsal aorta. Functional anatomy of circulatory and respiratory system is important. Think carefully about relation between circulation and ...

Circulatory systems in the Mollusca vary structurally from the open system typical of most classes to the closed system in the Cephalopoda. The gastropod circulatory system serves transport and ...

A circulatory system that beats gravity. Spots that dissipate heat. This giant is purpose-built for its size and surroundings. This story appears in the October 2019 issue of National Geographic ...

The circulatory system of most spiders consists of the heart, pericardium, arterial vascular system, the open venous system, and lung veins connecting book lungs to the pericardium. Several important ...