A Virus viral antigen List the Virus different cell D Activates | types (A to E) Activates Activates A: blue colored cell B: orange colored C. Black colored D: Purple colored E: Dark blue colored в Infected Body Cell Antbodies

Human Anatomy & Physiology (11th Edition)
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Chapter1: The Human Body: An Orientation
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**Transcription and Explanation for Educational Website**

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**Image Title: Immune System Cell Interactions**

The image illustrates the interactions between different cell types within the immune system in response to a viral infection. Below is a detailed description and transcription of the image components and processes:

**Cell Types (Labeled A to E):**

- **A: Blue Colored Cell** - This represents an antigen-presenting cell that presents viral antigens.
- **B: Orange Colored Cell** - This is a helper T cell, which gets activated upon encountering the antigen.
- **C: Black Colored Cell** - This depicts a cytotoxic T cell, activated to destroy the infected body cells.
- **D: Purple Colored Cell** - A B cell, which is activated to produce antibodies.
- **E: Dark Blue Colored Cell** - Represents a plasma cell that produces and secretes antibodies.

**Process Description:**

1. **Virus Infection:**
   - The virus enters the body and infects a host cell, shown as "Infected Body Cell."

2. **Antigen Presentation:**
   - Viral antigens are presented by the blue colored cell (A).

3. **Cell Activation:**
   - The antigen-presenting cell (A) activates the helper T cell (B) and the cytotoxic T cell (C).
   - The activated helper T cell further stimulates the B cell (D).

4. **Antibody Production:**
   - The B cell (D) differentiates into a plasma cell (E) to produce antibodies.
   - Antibodies are released, depicted as small triangular shapes in the diagram, which target the virus.

5. **Immune Defense:**
   - Cytotoxic T cells (C) eliminate infected cells.
   - Antibodies neutralize and help clear the virus from the body.

**Diagram Explanation:**

The diagram uses arrows to depict the activation and interaction pathways among cells:
- Solid arrows show direct activation between different cell types.
- Dashed lines indicate processes such as antigen presentation.

This schematic provides a clear overview of how the immune system identifies and responds to viral pathogens through the coordinated actions of various immune cells.

--- 

**End of Transcription**
Transcribed Image Text:**Transcription and Explanation for Educational Website** --- **Image Title: Immune System Cell Interactions** The image illustrates the interactions between different cell types within the immune system in response to a viral infection. Below is a detailed description and transcription of the image components and processes: **Cell Types (Labeled A to E):** - **A: Blue Colored Cell** - This represents an antigen-presenting cell that presents viral antigens. - **B: Orange Colored Cell** - This is a helper T cell, which gets activated upon encountering the antigen. - **C: Black Colored Cell** - This depicts a cytotoxic T cell, activated to destroy the infected body cells. - **D: Purple Colored Cell** - A B cell, which is activated to produce antibodies. - **E: Dark Blue Colored Cell** - Represents a plasma cell that produces and secretes antibodies. **Process Description:** 1. **Virus Infection:** - The virus enters the body and infects a host cell, shown as "Infected Body Cell." 2. **Antigen Presentation:** - Viral antigens are presented by the blue colored cell (A). 3. **Cell Activation:** - The antigen-presenting cell (A) activates the helper T cell (B) and the cytotoxic T cell (C). - The activated helper T cell further stimulates the B cell (D). 4. **Antibody Production:** - The B cell (D) differentiates into a plasma cell (E) to produce antibodies. - Antibodies are released, depicted as small triangular shapes in the diagram, which target the virus. 5. **Immune Defense:** - Cytotoxic T cells (C) eliminate infected cells. - Antibodies neutralize and help clear the virus from the body. **Diagram Explanation:** The diagram uses arrows to depict the activation and interaction pathways among cells: - Solid arrows show direct activation between different cell types. - Dashed lines indicate processes such as antigen presentation. This schematic provides a clear overview of how the immune system identifies and responds to viral pathogens through the coordinated actions of various immune cells. --- **End of Transcription**
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