Difference between Open and Closed Circulatory System

The circulatory system is the system of blood vessels that carries blood throughout the body. The circulatory system is formed by the heart, blood vessels and blood. The heart is an organ that pumps blood throughout the body. The blood vessels are pipes that carry blood from the heart to all parts of the body. This system of our body is responsible for the movement of oxygen and nutrients to all parts of our body. The heart has two chambers, the right and the left, that are separated by a septum. The septum is a thin wall of muscle that acts as a barrier to prevent the blood on one side from mixing with the blood on the other side. The two chambers are interconnected by four pairs of arteries and four pairs of veins.

About the Circulatory System

The circulatory system is a network of blood vessels, lymphatic vessels, capillaries, veins, and arteries. It is responsible for supplying oxygen and nutrients and removing carbon dioxide and waste products from the body. It is also responsible for maintaining the body temperature and pressure, and transporting blood through it. The Circulatory system is responsible for the primary transport of oxygen and blood throughout the body. The circulatory system consists of two interconnected parts. The pulmonary circulation is a network of blood vessels throughout the body, and the respiratory system is a network of airways and alveolar sacs that allow gas exchange and the transfer of oxygen and carbon dioxide between the blood and the respiratory system. The systemic circulation bears the transport of oxygen and nutrients from the heart to all parts of the body The circulatory system is the system of tubes that circulate blood throughout the body. Blood is a water-based fluid made up of plasma, red blood cells, white blood cells, and platelets. It is circulated by the heart, which is the organ primarily responsible for the circulation of blood. It is driven by the action of the muscles in the walls of the chambers of the heart (coronary arteries) and by the contraction of the cusps.

The components of a vertebrate circulatory system

The whole circulatory system consists of the heart, the fluid, connective tissue blood, blood vessels, capillaries and tissues. The heart is the single most important part of the circulatory system. The heart works by transferring blood from the heart chambers to the body tissues by way of the blood vessels.

Heart

Heart is an independent muscle. The heart is the only major organ in the body that does not depend on nerves or any other sensory system to function. It is also the only organ that can function in complete isolation from sensory or motor systems, because it cannot be affected by the effects of touch, pressure, or any other sense. The main function of the heart is to pump blood to the body tissues via blood vessels. This is done through the rhythmic contraction of the myocardium, which is the muscular wall of the heart.

Blood

Blood is the main component of the circulatory system. It is a fluid connective tissue that flows through the vessels of the body. It carries oxygen, nutrients, and other chemicals to the tissues and removes waste products and carbon dioxide from the tissues. It transports the blood on its journey through the circulatory system and keeps tissues and organs alive by supplying oxygen and nutrients by diffusion or active transport. Blood forming tissues are thymus, bone marrow, spleen, lymph nodes

Blood Vessels

Blood vessels are the tubes that bring blood from the heart to the various tissues and organs and bring the waste products of metabolism out of the tissues and organs. There are two main types of blood vessels in the body, arteries and veins. Arteries are tubes that carry blood from the heart to various parts of the body. Veins are tubes that carry blood away from the body to the heart, and they are the larger of the two. They are located below the arteries. Veins are tubes that carry blood away from the heart. Arteries are tubes that carry blood to the heart.

Differences between two basic types of Circulatory Systems

Open Circulatory System	Closed Circulatory system
Blood Vessels, Capillaries, Arteries, Veins are absent.	Blood capillaries, Arteries, Veins, and Vessels are present.
The Open Circulatory system is found in Arthropods and Molluscs phyla of the Animal Kingdom.	Animals of the phylum Annelida and all invertebrates possess Closed Circulatory systems.
A body cavity called haemocoel is present in animals possessing open circulation ex- Cockroach, Grasshopper.	Haemocoel is absent, instead Blood vessels and capillaries which trail blood to each organ individually are present.
There is no conspicuous  distinction between blood and interstitial fluid.	Blood is distinguished into RBCs, WBCs, Plasma and Platelets.
Circulatory fluid called Haemolymph fills the Haemocoel cavity.	Circulatory fluid is called blood, blood is pigmented with iron containing haemoglobin. The blood fills the Vessels, Arteries, Capillaries and the Heart.
Body muscles (Alary muscles in case of Arthropoda) stimulate the circulation in animals possessing Open Circulatory systems.	The rhythmical contraction and relaxation of the muscles of the heart (Myocardium) causes blood to get pumped to the lungs and/or various parts of the body.
Organs of the animal possessing an open circulatory system are bathed in blood during every cycle of circulation, as there are no blood vessels present.	Blood travels through the intricately networked blood vessels from the arteries or veins into each and every tissue of the organ.
Open Circulatory system is relatively less efficient is transporting oxygen and nutrients to the tissues and organs	Closed circulatory system is more efficient compared to the open circulatory system.
Open circulatory system uses less energy to pump and distribute blood hence, it is energy efficient.	Closed circulatory systems use more metabolic energy and more complex arrays of muscle contraction and relaxation.

Conclusion

The vascular system is the circulatory system of an animal, which consists of the arteries and veins.It is composed of two circulatory systems, the pulmonary system and the systemic system. The pulmonary system consists of the arteries and the lungs, while the systemic system consists of the arteries, the capillaries, the veins and the lymphatic system.

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