expalin transportation in human beings
Answers
transportation of food materials , Oxygen , carbon dioxide and water is done by the lymph and the blood present in the body
the blood transport oxygen in the cells which produce energy with the help of oxygen
and lymph carry out of waste product from the body
Answer:
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Explanation:
Introduction
The human body is a complex machine, requiring many processes to function efficiently. To keep these crucial processes running without any hitches, vital elements and components need to be delivered to the various parts of the body.
This role of transportation is undertaken by the human circulatory system, moving essential nutrients and minerals throughout the body and metabolic waste products away from the body.
Circulatory System Organs
The human circulatory system comprises of 4 main organs that have specific roles and functions. The vital circulatory system organs include:
- Heart
- Blood (technically, blood is considered a tissue and not an organ)
- Blood Vessels
- Lymphatic System
1. Heart
The heart is a muscular organ located in the chest cavity, right between the lungs. It is positioned slightly towards the left in the thoracic region and is enveloped by the pericardium. The human heart is separated into four chambers, namely, two upper chambers called atria (singular: atrium), and two lower chambers called ventricles.
2. Blood
Blood is the body’s fluid connective tissue, and it forms a vital part of the human circulatory system. Its main function is to circulate nutrients, hormones, minerals and other essential components to different parts of the body.
Blood is composed of:
Plasma – the fluid part of the blood and is composed of 90% of water.
Red blood cells, white blood cells and platelets constitute the solid part of blood
3.Blood Vessels
Blood vessels are a network of pathways through which blood travels throughout the body. Arteries and veins are the two primary types of blood vessels in the circulatory system of the body.
4. Lymphatic System
The human circulatory system consists of another body fluid called lymph. It is also known as tissue fluid. It is produced by the lymphatic system which comprises a network of interconnected organs, nodes and ducts.
Lymph is a colourless fluid consisting of salts, proteins, water, etc. which transport and circulates digested food and absorbed fat to intercellular spaces in the tissues. Unlike the circulatory system, lymph is not pumped; instead, it passively flows through a network of vessels.
Human Circulatory System
The human circulatory system consists of a network of arteries, veins, and capillaries, with the heart pumping blood through it. Its primary role is to provide essential nutrients, minerals, and hormones to various parts of the body. Alternatively, the circulatory system is also responsible for collecting metabolic waste and toxins from the cells and tissues to be purified or expelled from the body.
Double circulation
The way blood flows in the human body is unique, and it is quite efficient too. The blood circulates through the heart twice; hence, it is called double circulation. Other animals like fish have single circulation, where blood completes a circuit through the entire animal only once.
The main advantage of double circulation is that every tissue in the body has a steady supply of oxygenated blood, and it does not get mixed with the deoxygenated blood.