Pretend a friend tells you, “I can’t believe I still get pimples even though I’m not a kid anymore! My doctor keeps telling me not to poke or scratch at my pimples, but I always want to just get them off!”
Use an A&P perspective to explain why your friend’s doctor would say to not poke or scratch pimples. Use the words “myofibroblasts,” “collagen,” and "migrate" in your answer.
Discussion
Scratching or poking pimples can worsen inflammation.Pimples are like tiny battlegrounds where myofibroblasts and collagen fight to restore harmony. Scratching or poking pimples create irregular scar tissue instead of smooth collagen. Myofibroblasts are working hard to keep their skin intact thus should not peel off , scratches or poke the pimples.
Application question 6 (week5)
The doctor advised not to poke or scratch the pimples because it is not only worsening the inflammation but also potentially caused fibrosis or "scarring." When you scratched it disturb the delicate balance of skin cells and the collagen fiber in repair process. Myofibroblasts are are activated and trying to repair the damage. Myofibroblasts migrate to the wounded area, alert by chemical signals to produce of collagen, synthesis and other extracellular matrix proteins. When you keep scratching it disturb the healing process instead of smooth collagen, it's create irregular scar tissue causing permanent scarring.
Week 5 - Introduction & Goals
This Week's Goals
We
are continuing our progression toward larger and larger structures in
the human body and over the coming days will finally begin our
discussions of organ systems, starting with the skin! Of course, even
as we explore structures at larger sizes/scales, we want to keep our
focus on the "A&P perspective" of the human body. That means
continuing to adopt a cellular and molecular perspective related to the
larger structures and organ systems we discuss. In this set of module
activities, we will initiate a discussion of some key body membranes.
This will lead us to the last of the membranes we will study - the skin -
which we will dig into next week!
Given all of the above, we will seek to...
- Explain some of the dangers of asbestos exposure using a knowledge of tissues & membranes
Asbestos and Health
Click here (or find a PDF here
Download PDF here) to read a New York Times article regarding asbestos (note that the link includes articles on a few different topics, and you only need to review the brief, top article on asbestos).
Respond to what you read with at least a few sentences below. You might discuss...
- What most stood out to you, surprised, or confused you in the article?
- What else do you know about asbestos from your prior knowledge?
- Have you ever encountered information about asbestos related to your home or work? (asbestos is extremely common in older buildings in the SF bay area!)
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