Question

How much blood is in a human body in liters?

Answer 1

One of the most vital components of life is blood. Blood is found in almost every animal with a circulatory system. Blood was thought to have evolved from a type of cell that was responsible for phagocytosis and nutrition from an evolutionary standpoint. Blood and the circulatory system have aided the evolution of more complex lifeforms for billions of years.

Complete answer:
Plasma, blood cells, and platelets make up blood, which is a fluid connective tissue. It transports oxygen and nutrients to all of our cells and tissues as it circulates throughout our bodies. It accounts for 8% of our total body weight. The average adult has approximately 5-6 liters of blood.
Types of blood cells:
Red blood cells (Erythrocytes): In humans, RBCs, also known as erythrocytes, are biconcave cells with no nucleus. RBCs contain hemoglobin, an iron-rich protein that gives blood its red color. The most abundant blood cells produced in the bone marrow are RBCs. They are primarily responsible for transporting oxygen from and to various tissues and organs.
White blood cells (Leucocytes): Leukocytes are colorless blood cells. They are colorless due to the lack of hemoglobin. Granulocytes and agranulocytes are two types of granulocytes. WBCs are primarily involved in immunity and defense mechanisms.
In the human body, blood serves four important functions:
1. Transportation.
2. Protection.
3. Body temperature regulation.
4. The regulation of the body's pH level.
The average adult human has 4.5 to 5.6 liters of blood in his or her body.

Note:
Around 7% to 8% of the total body weight is made up of blood. Plasma and formed elements or corpuscles, which include RBCs (Red Blood Cells), WBCs (White Blood Cells), and blood platelets, are the two main components of blood. Blood makes up approximately 1.325 gallons in a healthy adult human body. Thousands of white blood cells, millions of red blood cells, and millions of platelets make up a single drop of blood.