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NEET UG 2026 » NEET UG Study Material » Biology » BLOOD AND LYMPH
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BLOOD AND LYMPH

Students interested in a career in medical research should be aware of the distinction between blood and lymph. Lymph is a colourless fluid without red blood cells, whereas blood is crimson because of the presence of red blood cells.

Table of Content
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When it comes to moving a range of substances throughout the body, blood is our body’s unique fluid connective tissue. Platelets, plasma, and red blood cells make up the majority of blood’s constituents. The human circulatory system relies heavily on blood, which performs a variety of activities, including:

  • Maintaining a healthy body temperature.

  • Cellular water content is controlled by this enzyme.

  • A clot prevents excessive blood loss by stopping the flow of blood.

  • By reacting with acids and bases, it is able to control the pH.

  • Hormones, nutrients, enzymes, breathing gases, and other substances are transported to different areas of the body by the lymphatic system.

Definition of Blood

When blood is circulated throughout the body, it delivers oxygen, nutrients and waste disposal. In addition, the majority of blood is in a liquid state, containing a variety of proteins and cellular elements. As a result, blood is a lot denser than water is.

Definition of Lymph

It is a colourless fluid that contains white blood cells called lymphocytes. Bacterial invasion is thwarted by the white blood cells’ ability to destroy them. Besides that, lymph is a slightly alkaline coagulable fluid that washes the body’s various tissues.

Difference Between Blood and Lymph

Lymph

Blood

Definition

It is a colourless fluid.

It is a reddish coloured fluid.

Process occurs in

It is part of the lymphatic system

It is part of the circulatory system

Functions

It contributes to body defense and is a component of the immune system.

It is involved in the transport of nutrients, hormones, oxygen and carbon dioxide, as well as wastes and other pollutants. Made up of It comprises plasma as well as a lower concentration of WBCs and platelets.

Comprised of

It comprises plasma as well as a lower concentration of WBCs and platelets.

It contains plasma, RBCs, WBCs, and platelets.

Oxygen level

Carries less oxygen and digested food.

Carries more oxygen and digested food.

Proteins and minerals

Lymph plasma lacks proteins.

Blood plasma consists of proteins, calcium, and phosphorus.

Supply of Nutrients

 Nutrients are transported from cells and tissues to the circulation via lymphatic capillaries.

 Nutrients are supplied to different organs.

Flow

Very slow compared to blood.

Blood flows fast in the blood vessels.

Formation of Clots

Clots slowly because there is less fibrinogen present.

clots fast Because there is more fibrinogen present.

Movements

Lymph flows in only one direction.

Blood circulates in a circular motion.

More Details about Blood

Blood volume in an ordinary individual range from 5 litres to more than a gallon. About half of the blood’s volume is plasma, a clear, colourless liquid. There are many other tasks for plasma, which includes proteins that aid in the coagulation of blood, the transfer of chemicals, and more.

An estimated 50 percent of a person’s blood is made up of blood cells. Blood cells transmit oxygen, whereas white blood cells can fight off disease. Platelets, which are smaller cells, are also helpful in the process of clotting blood.

Blood vessels, arteries and veins, carry blood throughout the body. In addition, the smoothness and the correct balance of clotting elements in blood arteries prevent blood clotting. In addition, blood with a pH of less than 7.35 is considered acidic by medical professionals.

More Details about Lymph

Lymph, as opposed to blood, is colourless and serves as a means for tissues to return waste products to the bloodstream. In addition, lymph capillaries receive interstitial fluid, which circulates between the cells of various tissues. Lymphatic fluid is transported through lymphatic channels of increasing size via the lymph nodes.

The surrounding cells and blood cells constantly interchange components with each other, resulting in constant flux in the composition of lymph. The interstitial fluid is the medium for this chemical exchange to occur. Most importantly, lymph restores proteins and extra fluid to the bloodstream.

Lymph’s chemical makeup is comparable to that of blood plasma, but it is not the same. Furthermore, lymphocytes are more concentrated in lymphatic fluid than in blood plasma as it exits the lymph node.

CONCLUSION

From the following article we can conclude that In terms of transferring a variety of substances throughout the body, blood is our body’s unique fluid connective tissue, which makes it unique among other things. Platelets, plasma, and red blood cells make up the vast bulk of the blood’s constituents, except plasma.

 
faq

Frequently asked questions

Get answers to the most common queries related to the NEET Examination Preparation.

What is the difference between blood and lymph?"

Ans: For starters, while lymph has no colour, blood has a reddish tint.

What is the function of lymph in the body?

Ans: Lymph aids in the movement of soluble lipids, vitamins, and other nutrients The extra fluid and proteins also r...Read full

Blood and lymph are both fluids, but what kind of fluid are they?

Ans: Blood and lymph are the two types of circulatory fluids that circulate throughout the body. Both blood and lymp...Read full

What exactly are blood capillaries?

Ans: Capillaries are small, thin blood vessels that connect the arteries to the veins and carry oxygen and nutrients...Read full

Ans: For starters, while lymph has no colour, blood has a reddish tint.

Ans: Lymph aids in the movement of soluble lipids, vitamins, and other nutrients The extra fluid and proteins also return to the bloodstream as a result of this. Lymphocytes are also found in the lymph.

 

 

Ans: Blood and lymph are the two types of circulatory fluids that circulate throughout the body. Both blood and lymph move through vessels, with blood vessels being the primary conduit for both. The blood circulates throughout the body, transporting respiration gases, nutrients, and metabolic wastes. The lymphatic system is in charge of draining tissue fluid into the circulatory system. 

Ans: Capillaries are small, thin blood vessels that connect the arteries to the veins and carry oxygen and nutrients. Tissue cells have thin walls that allow oxygen, nutrients, carbon dioxide, and waste products to pass between them and the surrounding environment.

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