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About Kevin

Kevin has spent more than three decades teaching undergraduate human anatomy & physiology. He has also been writing A&P textbooks and related works. He is a President Emeritus of the Human Anatomy and Physiology Society (HAPS) and was founding director of the HAPS Institute. He also teaches graduate courses and workshops for those who teach A&P.

The A&P Professor is another way Kevin has found to promote sharing among A&P teachers worldwide.

Minor imperfections enhance the handcrafted uniqueness of this website.


Homeostasis models

Because I want my students to have a thorough understanding of homeostasis before moving into their study of human physiology in our A&P course, I spend a LOT of time on this topic during the first week of class.

Because the concept of homeostasis is usually new to my students . . . and because I use three different analogies in an attempt to "get at" what homeostatic control really means . . . I provide them with some "extra" material on homeostasis online. I call this module a "mini lesson" and it's intended as a supplement to what they already get in the textbook and the lecture/discussion session.

My "homeostasis mini lesson" includes three analogies of how homeostasis maintains balance in the body:

Fishbowl model of homeostasis1. The fishbowl model compares the human body to an aquarium. Health of the system requires stability of the fluid environments inside the tank. Various devices (like organs) operate to maintain that stability (of temperature, oxygen level, etc.).

2. The engineered control system model uses a engineered thermostat to show students how automatic control sytems that maintain stability in a system are designed. This also helps introduce students to the essential terminology of homeostasis, which is borrowed from engineering.

3. The Wallenda model uses the famous family of circus wire-walkers to illustrate some additional concepts of balance in the body, such as how negative feedback helps keep us close to the set point.

Check out my Homeostasis Mini Lesson at my Lion Den website.

[NOTE: You are welcome to use the information in your own course by linking to my Mini Lesson. You may also use my material in your handouts (not for general publication) if you agree to cite the source as "Copyright Kevin Patton,"]

Free Slides and Videos

Here are some FREE slides related to homeostasis that you can use in your course:

You can get my whole collection of supplemental A&P slides in an editable format. Visit Lion Den Slide Collection for details.

Don't know who the Wallendas are? Check out these video clips!

Here's a clip showing the great Karl Wallenda and the Great Wallendas in 1962.
Note the appearance "11-year old Tino" who is currently the patriarch of the family.

Here's a clip of today's act, known as The Flying Wallendas.
Tino is in the very last "anchor" position in the pyramid.

Here's a clip of the tragic fall to the death of Karl Wallenda.
I use this event in my analogy to underscore that death is always caused by a failure to maintain (homeostatic) balance. And as strong advice in choosing career paths wisely.

Here's another example of what can go wrong when balance is lost.

[Go to The A&P Professor YouTube page to learn how to embed any of these videos in your PowerPoint or webpage . . . or simply link to it from your own email or webpage.]

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