A Guide to Understand Blood Composition with Diagram

Blood is the connective tissue that helps the human body to get its required nutrients and oxygen. The heart pumps the blood and keeps the whole circulation system going. To understand the circulatory system in the human body, the students need to learn about blood. It is always best to use diagrams to learn about human organs. In this article, it not only illustrates the blood anatomy, but guide people to create the blood diagram.

1. What Does Blood Look Like?

Blood is a connective tissue made of components like plasma, blood cells, and platelets. It creates connectivity between different organs of the human body with arteries, veins, and capillaries. Blood circulation occurs through these blood vessels connected to the heart.

Based on the blood composition, the blood has several significant roles. The primary function of blood is to transfer oxygen to the lungs and bring the waste material to the kidney. Blood also maintains the warmth of the human body, prevents infection, and gives immunity.


2. The Structure of Blood

Vessel Wall: The blood vessels are channeled to supply blood in different parts of the body, and based on their functions, they are of three different types, arteries, capillaries, and veins. The arteries mainly carry blood from the heart and three distinct layers, namely tunica externa, tunica media, and tunica intima. Veins function to supply blood to the heart; like arteries, they also have three layers, tunica externa, tunica media, and tunica intima.

blood composition

The blood has different corpuscles:

  • Red Blood Cell

    Erythrocyte or RBC is a major component of blood. They are disc-shaped and have a sunken center. The plasma membrane of a matured RBC is made of glycoproteins and glycolipids. Two proteins, namely actin and spectrin, are present on their inner surface. A mature RBC lacks most organelles, including the nucleus, which stops it from repairing itself. RBC contains hemoglobin and takes part in the circulation of oxygen. RBC transfers oxygen from our lungs to different parts of the human body and carries carbon dioxide from the organs to the lungs.

  • White Blood Cell

    Granulocytes and agranulocytes are the two significant divisions of Leukocytes or WBC. This section is made based on organelles' presence in the cell cytoplasm, which appears as colored granules under the microscope.

  • Granulocytes
    • Neutrophils: Neutrophils have different nuclear shapes and contain cytoplasmic granules, which can be noticed under a light microscope. These WBCs have a significant role in killing bacterias and preventing their growth.
    • Eosinophils: Eosinophils have cytoplasm with a defined and double-lobed nucleus and big granules. They participate in removing the allergens and secreting enzymes to destroy parasites.
    • Basophils: Basophils contain a nucleus, but they are pale and stay hidden behind the granules. These WBCs have a significant role in blood coagulation. It releases histamine to increase the blood flow while dilating the blood vessels. The heparin hormone from basophils works as an anticoagulant to prevent the clotting of other blood corpuscles.
  • Agranulocytes
    • Lymphocytes: These agranulocytes can be of different sizes, while the medium and large ones are there in fibrous connective tissues. They can also be present in the bloodstream. Lymphocytes strengthen the immunity of the human body by generating antigens, releasing antibodies, and coordinating an immune memory. They also kill cancer cells and prevent other virus-infected cells from affecting the body.
    • Monocytes: Monocytes are the largest, and they are high in numbers. The monocytes digest the pathogens and other dead cells. They also release antigens for immunity building.
  • Platelets

    Platelets are small, colorless, and fragments of the cells of bone marrow. They work to coagulate the blood on a wound. They cause vascular spasms and secret procoagulants for blood clotting. After that, dissolve the clots when they are no longer required. They also help in destroying bacterias by attracting monocytes and neutrophils to the affected site.

  • Plasma

    The main content of the plasma is a protein, which works in human body defense, blood clotting, and transport. It has albumins, globulins and fibrinogens. These plasma proteins carry molecules, coagulate blood near wounds. They circulate water between blood and tissue fluid. Other than protein, plasma has amino acids for the digestion of protein.

There are nutrients like glucose, amino acids, fats, vitamins, and minerals present in plasma. The other contents of plasma are nitrogenous wastes, gases, electrolytes, etcetera.

blood composition
Source: EdrawMax Online


3. How to Create the Blood Composition Drawing

You can draw a blood diagram in two ways, by hand or using EdrawMax Online. EdrawMax Online supports to export blood cell diagrams in multiple formats, like Graphics, PDF, and more. Or just print it out and stick to the reports.

3.1 How to Create Blood Composition Drawing from Sketch

It is better to make a diagram, to understand the structure of any human organ. The students need to draw blood cells for their studies or projects. The process may be challenging because of the different blood cell varied structures. Here is a small guide for the students if they want to create a blood cell diagram by hand:

Step 1: To draw RBCs, the students need to make a circle shape. Now, within this circle, they should draw a similar circular shape.

How to Create Blood Composition Drawing from Sketch

Step 2: The platelets are sickle-shaped, and the students can make them in small clusters.

Step 3: The eosinophils are circular and with a two-lobed nucleus within them with some granules.

How to Create Blood Composition Drawing from Sketch

Step 4: The Basophils are circular with a chunk of the nucleus in the center with several round-shaped granules.

Step 5: The neutrophil has a three-lobed nucleus. It is there in the center of the circular blood cell.

How to Create Blood Composition Drawing from Sketch

Step 6: Monocytes have a circular shape and have a nucleus that has an irregular shape.

How to Create Blood Composition Drawing from Sketch

Step 7: The Lymphocyte is circular-shaped with a large nucleus inside it.

How to Create Blood Composition Drawing from Sketch


3.2 How to Create Blood Composition Drawing Online

It is challenging to do a freehand drawing of blood cells online. Hence that may not look good if the user wants to use it for their school projects. The process is lengthy and not so easy for new users. To avoid confusion, the users must use the EdrawMax Online tool. They follow these few simple steps to create a good quality blood cell drawing online:

Step 1: EdrawMax Online tool is user-friendly, and its easy-to-use interface makes it comfortable for the users to work on their diagrams. They can smoothly start their diagram by opening the EdrawMax Online tool. The first step is to open New and then click on the 'Science and Education' tab.

How to Create Blood Composition Drawing Online
Source:EdrawMax Online

Step 2: EdrawMax Online is a trusted diagramming tool. Many professions use the tool for their work because it has a large user base. It is one of the best tools for scientific diagrams, and hence the students, teachers, and researchers can use them for their work. To create a blood cell diagram, they need to choose the Biology option. Here they can find the template of blood cells.

How to Create Blood Composition Drawing Online
Source:EdrawMax Online

Step 3: The tool comes with several customizable diagrams which the students can modify as per their requirements. It makes it easier and time-efficient for them. Once they get the blood cell diagram, they can edit them according to their choice and need.

How to Create Blood Composition Drawing Online
Source:EdrawMax Online

Step 4: Once the user is satisfied with their diagram, they can save the file and then export it to different formats. They can print them or use them for their studies and projects. The blood composition diagram created with this tool has a professional look and hence can fetch good grades.

How to Create Blood Composition Drawing Online
Source:EdrawMax Online


4. The Blood Disorder

As the connective tissue, blood plays asignificant role in the proper functioning of the human body. Hence, some disorders may result in fatal diseases. Here is a list of ailments occurring due to blood disorders:

  1. Disorder Affecting Red Blood Cell
  2. Anemia, Pernicious Anemia, Aplastic Anemia, Sickle cell Anemia, Thalassemia, Polycythemia vera, etcetera.

  3. Disorder Affecting White Blood Cell
  4. Lymphoma, Leukemia, Multiple Myeloma, etcetera.

  5. Disorder Affecting Platelets
  6. Idiopathic thrombocytopenic purpura, Thrombotic thrombocytopenic purpura.

  7. Disorder Affecting Blood Plasma
  8. Deep Venous Thrombosis, Disseminated intravascular coagulation, etcetera.


5. Conclusion

Blood is a connective tissue that helps in the transfer of oxygen and nutrients. It also maintains immunity and gives individuals protection from pathogens. Therefore, to understand the functions of the human body and its organs, it's essential to learn blood composition. The students must make diagrams to study blood composition. However, making a freehand diagram can be challenging. To avoid that, the students must use the EdrawMax Online tool. The tool can help them in creating a high-quality image for their studies and dissertation papers.

In conclusion, EdrawMax Online is a quick-start diagramming tool, which is easier to make artery and vein diagram and any 280 types of diagrams. Also, it contains substantial built-in templates that you can use for free, or share your science diagrams with others in our template community.