How Many Liters Blood In Healthy Human Body?
You will learn-
- What is blood?
- Components of bloods
- Functions of Blood
- Why is blood look red?
- How many liters blood in human body?
What is blood?
Blood is a Fluid Connective Tissue which circulate throughout the body that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.
Components of blood
The main composition of blood is- it has four main component : Plasma, RBCs, WBCs & Platelets
1. Plasma
✓ Colour of plasma is clearly yellow watery fluid.
✓ 55% of the volume of blood.
2. Blood cells
✓ Types of blood cells- RBCs, WBCs and Blood platelets
✓ 45% of the volume of blood.
Functions of blood
Main function of Blood is transport -
✓ Oxygen
✓ Nutrients
✓ Harmones
✓ Heat
✓ Protecting Substance
✓ Clotting factors
Why is blood look red?
Blood looks red colour due to the presence of hemoglobin which present in RBCs .
Human blood is red because of the hemoglobin, which contains a red-colored compound called heme that’s crucial for carrying oxygen through your bloodstream. Heme contains an iron atom which binds to oxygen; it’s this molecule that transports oxygen from your lungs to other parts of the body.
How many liters of blood in average human body?
The amount of blood in the healthy human body is generally equivalent to 7 percent of their body weight. The average amount of blood in your body is an estimate because it can depend on your weigh, your sex, and even where you live.
Babies: Babies born full-term have about 75 milliliters (mL) of blood per kilogram of their body weight. If a baby weighs about 3.6kg (8 pounds), they’ll have about 270 mL of blood in their body, or 0.07 gallons.
Children: The average 36kg (80-pound) child will have about 2.65 Liter of blood in their body, or 0.7 gallons.
Adults: The average healdthy adult weighing 60 to 80 kg have about 4.5 liter to 5.7 liter blood.
Pregnant Women: To support their growing babies, pregnant women usually have anywhere from 30 to 50 percent more blood volume. than those women who are not pregnant. Sometimes the amount of blood in the human body can differ based on where you live. For example, people who live at high altitudes have more blood because there isn’t as much oxygen at higher altitudes.
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