WebThe circulatory system is effectively a network of cylindrical vessels: the arteries, veins, and capillaries that emanate from a pump, the heart. In all vertebrate organisms, as well … WebEvolution has led to the existence of two types of circulatory systems, namely: Open circulatory system: It is primarily found in invertebrates. Here, the blood flows freely through cavities since there are no vessels …

Closed Circulatory System Facts, Advantages & Examples

WebThe phylum Cnidaria (pronounced “nih DARE ee uh”) includes soft-bodied stinging animals such as corals, sea anemones, and jellyfish (Fig. 3.23 A). The phylum’s name is derived from the Greek root word cnid - meaning nettle, a stinging plant. Cnidarians are found in many aquatic environments. Sea anemones are widely distributed, from cold ... WebThe circulatory system includes the heart, arteries, veins, capillaries and blood. Heart is a modified blood vessel with muscular walls, which periodically contracts to pump the blood into the various parts of the … flourish real estate tampa

Circulatory system Functions, Parts, & Facts Britannica

WebThe circulatory system is effectively a network of cylindrical vessels: the arteries, veins, and capillaries that emanate from a pump, the heart. In all vertebrate organisms, as well as some invertebrates, this is a closed-loop system, in which the blood is not free in a cavity. In a closed circulatory system, blood is contained inside blood ... WebThe earthworm’s closed circulatory system has five pairs of aortic arches or heart for pumping the blood in different parts of the body. These heart or aortic arches are mostly … WebBlood circulates through the annelid body within blood vessels that contract and actively move the blood. That is in contrast to the open circulatory systems of some other … flourish 3143 maple dr ne atlanta ga 30305