your heart.
Arteries and Capillaries
The vessels that pump blood round your body are called: veins, arteries and capilaries.
Blood cells travel to and from the pump called the heart by way of the blood vessels called the arteries and veins.
A series of vessels typically refers to a connected sequence of structures that transport fluids or materials within a system. This can include blood vessels in the circulatory system, vessels in the lymphatic system, or vessels used in industrial processes like pipelines or plumbing. The vessels are designed to efficiently and effectively channel the flow of substances from one point to another.
In earthworms, blood pressure is primarily controlled by a series of muscular vessels, particularly the dorsal and ventral blood vessels. These vessels act as a circulatory system, with the heart-like structures called aortic arches that help pump blood and maintain pressure. The contraction of these vessels regulates blood flow and pressure throughout the worm's body, ensuring efficient circulation of nutrients and waste removal. Additionally, the earthworm's ability to adjust the diameter of its blood vessels also plays a key role in blood pressure regulation.
The earthworm doesn't really have a heart. Instead, it has highly muscular blood vessels called the aortic arches that pump their blood.
The heart is a pump and move blood through the blood vessels.
to maintain speed of the pump without sepration......call me on 8439332784
The smallest blood vessels are called capillaries.
Sympathetic activation causes blood vessels to constrict by releasing a neurotransmitter called norepinephrine, which binds to receptors on the smooth muscle cells of the blood vessels. This binding triggers a series of events that ultimately lead to the contraction of the smooth muscle, resulting in the narrowing of the blood vessels.
3. grasshopper