Lab One Flashcards
What is the iWorx 214?
A peripheral hardware device that collects physiological information as electrical [analog] signals, converts the signals into digital signals, and then sends the information to the computer for display and analysis.
What LabScribe?
A program that displays and analysis’s the information from the iWorx 214. It controls the parameters associated with the input and output of the iWorx 214.
What does the LabScribe y-axis represent?
The strength of the input signal data collected.
What does the LabScribe x-axis represent?
Represents the time frame over which the signal is to be received [Display time]
What to the vertical blue lines represent?
The current location of the two cursors.
What is the function of this?
New file; opens a new file.
What is the function of this?
Open file; opens a previously recorded file.
What is the function of this?
Save file; save data to the file currently being open.
What is the function of this?
Main Window; brings the main window to the foreground.
What is the function of this? [Magnifying Glass]
Analysis Window; brings the analysis window to the foreground.
What is the function of this?
XY View; brings the XY view window to the foreground.
What is the function of this?
FFT (Spectrum); brings the FFT window to the foreground.
What is the function of this?
Journal; opens the Journal in the right hand corner.
What is the function of this?
Marks; brings the marks list to the foreground.
What is the function of this?
Stimulator Preferences; hides or displays the Stimulator toolbar.
What is the function of this?
Half Display Time; reduces the time displayed on the screen by a factor of 1/2 each time clicked.
What is the function of this?
Zoom Between Cursors; zooms to the area selected by the two cursors.
What is the function of this?
Double Display Time; increases the time displayed by a factor of 2 each time pressed.
What is the function of this?
Double Cursor Mode; displays two cursors.
What is the function of this?
Single Cursor Mode; displays one cursor.
What does depolarization of the myocardial cells in the ventricle cause?
It causes the ventricles to contract and force blood into the major arteries of the ciculatory system in a pulsatile manner.
What can the pulses of blood moving through the arteries be measured by?
Through a device called a *pethysmograph. *
What is a skinfold measurement?
A measurement that provides a rough estimate of total body fat as it relates to the relative amount of subcutaneous adipose tissue found within the hypodermis. This is important in maintaining homeostasis because it helps retain heat by forming an insulating layer.
Where do the peripheral thermoreceptors send signals?
To the hypothalamus, which in turn causes a physiological change that includes an alteration in blood flow.
