Blood is the essential ingredient of all people and animals. Blood is the red cell which has a significant function to maintain your life. You can not live without the blood. This article, we will show you necessary information about the blood. They can help you understand the function, ingredient, and so on. From this, you can answer this question “ how many pints of blood in the human body?” by yourself.

What are the functions of blood?

The primary roles of the blood:

  1. Transportation function: The blood transports oxygen from the lung to the tissues and carbonic from the cells to the lung to excreted outside the environment. Transport nutrients from the digestive tract to the cells and transport the waste products from the metabolism process to the excretory organs. The blood also carries hormone from the endocrine system to the target cells. Transporting the heat to your skin which regulates temperature.
  2. Balancing the water and mineral salt: Blood contributes to regulating the pH of the body through cushion system. Controlling the amount of water in the cells through osmotic pressure blood (affected by ions and proteins dissolved in the blood).
  3. Protect function: the blood can protect the body stay away from infection by phagocytosis, cellular hypoxia, and immune-system, cellular immunity. Plasma also has the potential to be involved in the self-management mechanism of bleeding, avoiding blood loss in the blood vessel.
  4. Unifying the body and regulate the activities in the body: Blood contains hormone, oxygen, carbonic, electrolytes Calcium, potassium, sodium to monitoring the activities of cell groups or different organs to ensure the synchronous operation of organs in the body.

How are many ingredients and their roles in the blood?

Normal blood includes four mains ingredients: Plasma (55%), and another blood cell (45%) cell: red blood cell, white blood cell (WBC) and Platelets. Each ingredient also has its role, which contributes build up a healthy body.

The red cell also knows as Erythrocytes: The main-est ingredient in the blood, contains hemoglobin (Hb) when it combined with O2 is bright red blood and mixed with CO2 is dark red. The blood comes from the lung to the heart which has the golden color, the blood from the tissues back of the lung has a dark color. The primary function is transfer and distributes oxygen.

White blood cell can call by Leukocytes: This is an essential part of the immune system. It kills the infectious agents and launching the immune response of the body.

Platelets: It is responsible for blood clotting. Platelets take part in the formation of platelets; the first step starts the formation of blood clots in small blood vessels.

Plasma: it is a fluid which contains 90% of water, protein plasma and many materials with a small amount (10%). Plasma consists Albumin, globulin, fibrinogen, coagulation agents, immunoglobulin, antibody, hormone, other protein, electrolytes and other wastes.

How many pints of blood in the human body?

According to Daniel Laudan, the doctor specialize in hematology and cancer in Orlando cancer center belongs to Florida university ( America): on average, an adult has 4.5-5.5 liter of the blood. At 5-6 years old, one child has the amount of blood equal to an adult. So, the adult contains 8-10% of the human weight, a child the proportion of the blood is more significant than adults because it has smaller bones and muscles.

Besides, neonate does not have too much blood. When the child was born, they just have 0.2-liter blood in the body. The amount of blood is different from each other. It depends on age, gender, health, and environment. The men tend to have more blood than women with the same weight and height.

How many groups does the blood have?

As you know, blood consists of cells and plasma. The appearance of each ingredient in the Red cell’s face and antibody in the plasma will decide the different or similar from each other. It will specify the corresponding blood type.

The scientist divides the blood into many systems of blood groups. ABO and RH are the favored groups.

ABO blood group system consists of 4 main groups: A, B, O, and AB with a different distribution in the world.

The principle in blood transfusion: The antigen cannot meet antibody so determining blood group before bleeding is critical. O blood group is a general group; it means all of the blood group can receive from them. AB blood group is a universal group, it can receive from any other group, but it only gives for AB. The people have type A blood can receive from O or A group. The people with type B blood also receive from O or type B blood.

RH blood group system: There are two types RH positive and RH negative. People with RH positive does not receive blood from RH negative and reversible.

Each healthy people can donate 250ml, 350ml, 450ml depend on the body weight. Every year, the men can give four times and three times in women.

Some Symptoms when you have anemia.

Besides some common symptoms such as weakness and loss of energy, signs of iron-deficient lead to lose blood: fast heartbeat and pulse, hypotension, Severe dysmenorrhea, heavy bleeding and pain mainly on the forehead.

Someone also loses appetite and disorder sleep, painful to breathing in any activities. If this condition lasts for a long time, it can cause stomach and impaired immune system.

The symptoms of losing blood are different from each other, and it can come sooner and later, fast or slow sometimes without apparent signs. When hemoglobin (Hb) below 7gr/dl, the patient will feel tired, headache, breathless, dizziness, chest pain, pale skin or even syncope.

What happens to your body when you have anemia?

There are many reasons for anemia: anemia due to iron-deficiency, vitamin B12, acid folic, loss blood, trauma, and injury, after surgery or chronic diseases… The body can be harmful if it does not have enough blood for circulation.

Extremely fatigue: dizzy when you stand up or sit down. You usually don’t have enough energy for daily activities.

Cardiac problem: Anemia can cause the fast heartbeat or irregular. The heart needs to bump more and more to compensate for oxygen deficiency. It leads to congestive heart failure.

Besides, some effects related to B12 vitamin deficiency such as Nerve damage, impaired mental function, and even death.

Especially in pregnant women, anemia can cause miscarriage, premature, or low weight and Bleed postpartum. Whenever you feel any abnormal signs in your body, you need to check with the doctor to find a cause. Protecting yourself is essential. We hope that you understood information about this question “ how many pints of blood in the human body?” and another aspect of blood. Hope this article will be useful for you and your family.

How Many Pints Of Blood In The Human Body?
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