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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
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Dover, NH 03820
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1. Experiment: Stretch Receptors
The stretch receptors in the tails of decapods (shrimp, lobsters, and crayfish) are good examples of sensory organs that are integrated with sensory neurons which are connected to a central nerve chord. These receptors monitor the position and movement of the animal’s tail, particularly important if the animal has to make a hasty retreat. The nerve tracts from these receptors are easily exposed, allowing recording electrodes to be attached to the nerves without damaging the sensory organs or the muscles that are being monitored. Students will record responses from two different types of stretch receptors that are positioned next to the dorsal superficial extensor muscles in the tail of the crayfish. Each type of sensory organ responds to a different stimulus, generates impulses of a different amplitude and frequency, and adapts to prolonged stimuli at a different rate.
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2. Article: Making a Suction Electrode
Suction electrodes are useful devices to have around an animal physiology or neurobiology lab if you are planning to make extracellular recordings from nerves or muscle fibers kept in a bath chamber. They can also be used to stimulate tissues kept in these types of chambers. These electrodes are inexpensive to make because they can be built with some simple items usually found in the lab and in a short time. Instructions for chloriding silver wire, without bleach, are also included.
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3. Special Offers: Student Dissecting Kit Now Available for $19; WebTeaching Tools CD Offer Extended
Student Dissecting Kit The iWorx student dissecting kit is now available for $19. Each kit includes two dissecting scissors (4" and 4.5" long), one dressing forceps (5.5" long), one micro-dressing forceps (4" long), one #4 knife handle and one #22 surgical blade, two teasing needles (straight and angled), and one canvas roll-up. These instruments are suitable for preparing the tissues needed in experiments from the iWorx Physiology Lab Manual. If purchased separately, the instruments from this kit would cost over $50. View full description, part number, and enlarged photo Special Offer Extended - Web Teaching Tools CD Available for $150 - expires October 31, 2004 The Tools for Web Teaching CD is a collection of illustrations, animations and digital videos that can be used by instructors as part of PowerPoint presentations in lecture or laboratory, or on course websites. The topics covered by illustrations and animations include: glycolysis and the Krebs Cycle, nerve potentials and synapses, cardiograms and blood pressure, muscle contraction, and much more. Digital movies cover a lot of the common techniques and preparations used in physiology laboratory. See the complete list of the animations, illustrations, and movies included on the Tools for Web Teaching CD

4. Web Resources
This month’s lab exercise demonstrates the activity of specialized sense organs known as stretch receptors. Here are some links to information that illustrates the anatomy and physiology of sense organs (and much more). At iWorx we believe in the future of the web as a teaching tool. See what some of your colleagues have done.

5. 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. See specials