Newsletter           
                                                                                                                            February 2004

The iWorx newsletter is a FREE monthly publication dedicated to sharing teaching laboratory techniques and other useful information with educators in the fields of Anatomy and Physiology. We will also be sending you technical information and info on new developments at iWorx that we feel may be of use to you in your teaching and research activities.

 
About Iworx

iWorx has everything you need to add excitement and distance learning to any physiology teaching program. Our products include data acquisition hardware, professionally -developed physiology courseware, innovative web tools, and a full selection of transducers, cables, front ends and accessories.

iWorx began serving the life science education market in 1991, under the MacLab® name. In 1996, we introduced our own line of CB Sciences front ends and accessories. Today, with the development of unique, Web-ready courseware, and an expanded product catalog, we've brought it all together – as iWorx.

 

 

 

 

iWorx
One Washington St. Suite 404
Dover, NH 03820
P: 800-234-1757
F: 603-742-2455
info@iworx.com

 

© 2004 CB Sciences, Inc. Patent pending. iWorx is a trademark of CB Sciences, Inc.
  Article: Intestinal Motility
Intestinal motility involves several types or patterns of smooth muscle contraction: segmentation that occurs in the circular layer of smooth muscle, pendular movements which occurs in the longitudinal layer, and peristalsis. These intestinal movements can be very vigorous. Most of the vigor slides the contents of the intestine back and forth within its lumen, mixing food with the acid and enzymes of digestive secretions, and exposing the entire mass to the enormous absorptive surface of the small intestines.

In this experiment, students will measure the frequency and the amplitude of intestinal contractions and the relative level of tonus in the muscle before and after changes in the conditions presented to the muscle. They will observe and record spontaneous smooth muscle activity from the rat jejunum or ileum before recording and analyzing the responses of this tissue to physiologically relevant agents or conditions, such as: stretch, acetylcholine (ACH), curare, atropine, epinephrine, serotonin, changes in pH, changes in calcium ion concentration, and sodium cyanide.

Download print-disabled article | Download print-enabled article (password required)
  Understanding Expanded License Lab Material
All iWorx courseware and lab materials are covered by an expanded license. We think that this is one of the best features of our teaching packages. Read More...
   Web Resources
5 Links to Sites Using the Web for Physiology Teaching. At iWorx we believe in the future of the web as a teaching tool. See what some of your colleagues have done.
   Trade in Specials
We have recently acquired a large supply of GRASS FT03 variable range Force transducers and P23id / P23xl reusable pressure transducers. Many of these items are BRAND NEW and are offered at up to 75% off original list price. Call for price and availability but hurry these will go fast. Also check with us about trade in allowances for your older Powerlab or Biopac equipment. Click here.

To unsubscribe, go to www.iworx.com/newsletter/unsubscribe.php. If this newsletter has been forwarded to you and you wish to subscribe, go to www.iworx.com/newsletter/subscribe.php.