Week 5 micro discussion | Anatomy homework help


Week 5 Discussion: Adaptive Immunity

66 unread replies.66 replies.

Required Resources

Read/review the following resources for this activity:

  • Textbook: Chapter 14, 15
  • Weekly Concepts

Initial Post Instructions

Your friend Bruce calls in a panic. He has just come from the doctor and been diagnosed with a bacterial infection. The doctor told him not to worry; his B cells will take care of it in no time! Knowing that you are studying the immune response, he is calling to ask you to explain this statement. Is the doctor correct? Is there more to the story?

Follow-Up Post Instructions

Respond to at least one peer or the instructor. Further the dialogue by providing more information and clarification.

Writing Requirements

  • Minimum of 2 posts (1 initial & 1 follow-up)
  • Minimum of 2 sources cited (assigned readings/online lessons and an outside source)
  • APA format for in-text citations and list of references



Hello Professor and Class,

Yes, the doctor is correct. The bacterial antigens are first recognized by specific B cells. B cells then engulf the antigen and digest it into smaller fragments. These digested fragments are then displayed on the surface of B cells. Specific MHC molecules then bind to these antigen fragments on B cells. Specific mature T cells are then attracted to this antigen-MHC combination on B cells. This results in the secretion of cytokines by mature T cells which help in the multiplication and maturation of B cells into antibody producing plasma cells and memory B cells. Antibodies released into the blood by plasma cells react with specific bacterial antigens and result in the formation of antigen-antibody complexes that are either phagocytosed by macrophages or are cleared by the complement cascade system.

Another part of the immune system that plays a role in fighting pathogens are CD4 T helper cells.

According to Highleyman (2021), CD4, or helper, T cells coordinate the immune response. These are the primary targets of HIV. As the virus destroys CD4 cells, people become susceptible to opportunistic infections and cancers. Suppressing the virus with antiretroviral therapy protects CD4 cells, and monitoring CD4 counts—along with viral load—can show whether treatment is working.

CD8, or killer, T cells (also known as cytotoxic T cells) directly attack invaders. Unfortunately, killer T cells are usually not able to keep HIV in check without antiretrovirals.

After the immediate threat has been dealt with, a small number of memory B cells and T cells remain on guard, ready to fight the same invader again.

Answer 2:


Hi Professor Brener and class,

I would tell Bruce that yes, the doctor is correct. I would tell Bruce that B-cells are highly specialized defender cells that are tailored to different microorganisms. When our body is infected with a particular microbe, only the T- and B-cells that recognize it will respond. These selected cells then quickly multiply, creating an army of identical cells to fight the infection (Cowan, 2017). Special types of T- and B-cells ‘remember’ the invader, making you immune to a second attack. With the help of T-cells, B-cells make special Y-shaped proteins called antibodies. Antibodies stick to antigens on the surface of germs, stopping them in their tracks, creating clumps that alert your body to the presence of intruders (Petersone et al., 2018). Your body then starts to make toxic substances to fight them. Patrolling defender cells called phagocytes engulf and destroy antibody-covered intruders (Petersone et al., 2018).

University Writings
Calculate your paper price
Pages (550 words)
Approximate price: -

Why Work with Us

Top Quality and Well-Researched Papers

We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.

Professional and Experienced Academic Writers

We have a team of professional writers with experience in academic and business writing. Many are native speakers and able to perform any task for which you need help.

Free Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account or by contacting our support.

Prompt Delivery and 100% Money-Back-Guarantee

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text. We also promise maximum confidentiality in all of our services.

24/7 Customer Support

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

Calculate the price of your order

Total price:

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.


Essay Writing Service

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.


Admission Essays & Business Writing Help

An admission essay is an essay or other written statement by a candidate, often a potential student enrolling in a college, university, or graduate school. You can be rest assurred that through our service we will write the best admission essay for you.


Editing Support

Our academic writers and editors make the necessary changes to your paper so that it is polished. We also format your document by correctly quoting the sources and creating reference lists in the formats APA, Harvard, MLA, Chicago / Turabian.


Revision Support

If you think your paper could be improved, you can request a review. In this case, your paper will be checked by the writer or assigned to an editor. You can use this option as many times as you see fit. This is free because we want you to be completely satisfied with the service offered.