It really is a quite complex network within the circulatory system, described more often just as the cardiovascular system, at work to transfer essential nutrients and substances throughout an organism. That transport medium being blood, carries oxygen and nutrient delivery to the cells and carrying removal of wastes off those cells from places in the system. It also plays a huge role in this process of the immune function. This blog will discuss how the circulatory system works, what its parts are, and vice versa, answering some of the most asked questions about this basic system.
Parts of the Circulatory System
There are three parts of the circulatory system. These
include the heart, blood vessels, and blood. All of them play a specific role
to ensure the system is able to work in a normal condition.
1. Heart
It is a muscular organ fist size and located inside the chest cavity. It resembles like a pump because it circulates the blood throughout the whole body to all the sides. The heart has four chambers.
- Left Atrium: It takes in the oxygenated blood coming from
pulmonary veins of lungs.
- Left Ventricle: It takes oxygenated blood toward the aorta,
therefore it will take all the deoxygenated blood of human being everywhere in
human body.
- Right Atrium: The de-oxygenated blood received by the right
atrium is conveyed to human being by the superior and inferior vena cava.
- Right Ventricle: These de-oxygenated bloods are sent to the
lungs by pulmonary arteries to oxygenate them.
- The heart also has valves on its inside so that blood could not flow forward with ease in one direction than in its commonly known way.
View More: Types of Heart Tests An A-Z Guide for You
2. Blood Vessels
- Blood vessels are tube like structures where the blood is
conducted in its route. There are mainly three kinds of blood vessels.
- Arteries: These transport relatively more well-oxygenated
blood from heart. The greatest artery aorta branches out in various tiny
vessels called arterioles, supplying this well oxygenated blood to distinct
portions of various organs and body parts.
- Veins: The veins carry lesser-oxygenated, back to the heart.
Their walls are thinner compared to that of an artery, and also, sometimes
include valves to prevent the retrograde flow of the blood.
- Capillaries: Microscopic, minute vessels which allow the
interchange in the blood with tissues of oxygen, carbon dioxide, nutrients and
waste. These also link both the arterial and the venous system, bringing
material to a cell level.
3. Blood
Blood is fluid constituent of the blood that contains
- Red Blood Cells or Erythrocytes: This constituent allows
oxygen to be drawn from the lungs and throughout tissues of the body by taking
in carbon dioxide for excretion into the lungs.
- White Blood Cells or Leukocytes: These cells form the immune
system, which allows the fight process against infections; they help to keep
the body safe against infectious invaders.
- Thrombocytes or Platelets: Fragments of which comprise
clotting blood in such a manner that the flow of blood would not be too
uncontrolled if damages occur.
- Plasma: It is the fluid part of the blood composed of water,
electrolytes, proteins, hormones, and waste products. Plasma is the
transporting medium of corpuscles other content of blood
Working of the Circulatory System
It is continuous though, because the circulatory system
makes sure there is a way fluid transport needs to be primed for anything there
is to move around within the body. That's one step at a time.
1. Oxygenation of blood
It then takes the deoxygenated blood from the body back to
the right side of the heart called right atrium. The deoxygenated blood then
moves to come out from the right atrium and is pushed upwards into the
ventricle and then upwards to the pulmonary arteries towards the direction of lungs.
2. Pulmonary and Gaseous Exchange at Lung
Carbon dioxide in the blood of an individual present in the
lungs comes out in the exhalation; as a matter of fact, in alveoli known as air
sacs, the oxygen gets bounded to it. Well, this can also be described as this
process of interchange of gases by some but certainly, it fulfills an extremely
basic necessity that is it compensates for oxygen in blood.
3. Oxygen Replete Blood is distributed
The oxygenated blood is sucked out by the pulmonary veins and
passed on to the left atrium of the heart. Once the left atrium has contracted,
it pushes the blood to the left ventricle. The left ventricle moves this blood
through the aorta.
4. Body Distribution
All these tiny arteries will take the oxygenated blood to
every part of the body. Oxygen and nutrients will diffuse into the capillaries
within the tissues and carbon dioxide as well as the waste products to the
blood.
5. Return Journey Deoxygenated Blood
This meant that it would take in oxygen and nutrients, and
the veins would suck the blood back in if it was sent back to it. The blood
would pump itself back into the heart, which it then circulated again through
to the right atrium. It kept all things equal and cell functions in order well.
Why the Circulatory System Is Important
The circulatory system is important for many reasons.
- Oxygen and Nutrients Supply: The entire body cell is
supplied with all what it needs for the optimal production. Without such a
transport system, the cells would run dry of essential needs for the generation
of energy and growth very quickly.
- Waste Products Removal: The circulatory system removes the
carbon dioxide and other metabolic waste products which are always toxic for an
inner environment.
- Immune Defense: The white blood cells and antibodies in the
blood constitute an action of an immune system. It will let the body fight
diseases and infections to be healthy.
- Hormone Distribution: This secretion is transported to the
organ which has a problem with it; it can regulate many other miscellaneous
activities of the human body including growth, metabolism and mood.
