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College Level Courseware for Each Teaching Kit
Quick Courseware Title Reference
Introduction to iWorx and LabScribe (tutorial)
(For all teaching kits: HK, AHK, PK)
In a series of simple exercises, students are familiarized with the iWorx hardware and operation of the LabScribe software. All aspects of the program that will be used in subsequent exercises are covered.
(view links below to the Lab Manual for each experiment in pdf format - lab exercises apply to all kits, except where noted). You can find an overview of the learning goals and outcomes for each exercise here.
Metabolism
In these labs, students demonstrate the effects of organism size on its rate of oxygen consumption, and the effects of substrates and inhibitors on oxygen consumption at the ultimate site of oxygen usage in cells, the mitochondrial electron transport chain. Devices used in these labs include the dissolved oxygen electrode and its current-to-voltage adapter/amplifier.
Excitable Tissue
In these labs, students become familiar with the properties of membranes in nerves and muscles, the potentials created across these membranes, neuron and muscle fiber recruitment, synapses and transmitters, reflexes and stretch receptors, and more. Students are shown how to record intracellular membrane potentials, nerve and muscle action potentials, reflex responses, reaction times, nerve conduction velocities, and human EMGs. Devices used in these experiments include: the intracellular probe, the nerve/muscle bath chamber, the pulse plethysmograph, and EMG electrodes and amplifier.
Muscles and Motility
In these labs, students learn about the properties of the three basic types of muscles found in vertebrates. In the experiments using frog skeletal muscle, the concepts of threshold, recruitment, and maximal response, as well as preloading, afterloading, summation, tetanus, and fatigue are presented. Many of the same concepts can be demonstrated on human subjects by adding the SM-100 set to any kit. In the experiments using smooth muscle, the tonic, phasic, and rhythmic properties of these muscles are explored, as well as the effects of various drugs, transmitters, and ions on their contractility. In the experiment using the frog heart, students measure the effect of temperature and autonomic neurotransmitters like epinephrine and acetylcholine on heart rate and contractility. Students will also examine the effects of an external pacemaker (stimulus pulse) on the refractoriness of the heart, and the effect of blocking the electrical signals between nodes and chambers of the heart.
Ionic and Osmotic Balance
The labs in this group present the basics of water and salt balance in the mammalian kidney and show osmosis at work in a living animal.
Cardiovascular Physiology
In these labs, the student is familiarized with the basic characteristics of the human ECG, cardiac output, and peripheral circulation. Students are shown how to record the cardiograms, blood pressures, and heart rates and how to use this type of data to monitor the effects of exercise, temperature, body position, and more on the human cardiovascular system. Devices used in these experiments include: the pulse plethysmograph, ECG electrodes and amplifier, blood pressure cuff, and the temperature sensor.
Pulmonary Ventilation
In these labs, students learn about the basic aspects of breathing mechanics, the effect of body position and exercise on breathing, the effect of breathing on heart rate, and the effect of selected pathologies on breathing. Students will measure vital capacities, tidal volumes, inspiratory and expiratory reserves, and forced ventilatory capacities (FEVs). The devices used in these experiments include the unique iWorx self-calibrating, self-zeroing flow spirometer, and the pulse plethysmograph.
Psychological Physiology
In these labs, students become familiar with the basic components of the human EEG, skin conductance, skin temperature control, heart rate and blood pressure control, and stress. In the EEG experiment, students demonstrate the effects of cortical arousal, behavioral and psychological states, and personality on EEG patterns. In the electrodermal activity experiments, students will measure the skin conductance levels of different subjects and learn about the effects of habituation, emotional content, deception, guilty knowledge, cognitive complexity, personality, and vigilance upon skin conductance. In other experiments, students will measure the effects of mild psychosocial and cognitive stressors, and highly emotional content and personality, on the skin temperature, heart rate, and blood pressure of different subjects.
Physiology Lab Exercises for Courses Using Elaine Marieb's Human Anatomy & Physiology Laboratory Manual
The following seven physiology experiments are compatible with the activities presented in the 8th edition of the Human Anatomy & Physiology Laboratory Manual, authored by Elaine Marieb and published by Benjamin Cummings (8th Edition).
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The IX-228S Recorder has 10 input channels and both a low voltage and a high voltage stimulator output. This recorder exhibits the high resolution and low noise required for small animal cardiovascular research, Oocyte clamp and high end metabolic research applications.