10 Questions
A one way valve that is forced closed and does not allow blood to re-enter heart is called
semi-lunar valve
The upward movement of the cardio pen during diastole as a result of a pressure vae in the aortic blood after it rebounds off of the aortic valve is known as:
dicrotic notch
The dicrotic notch in the cardiograph tracing is due to
the turbulence of the blood created by the valve closing, causing some of the blood that was recently ejected from the ventricles to bounce back against the valves.
A habitual cannabis user accumulates THC in the fatty tissue of their body faster than it can be eliminated. How long would a urine test be able to detect THC in a sample produced by a chronic user?
up to 3 months
A PVC (premature ventricular contraction)
A & B
When an examiner suspects that an examinee is attempting to use biofeedback as a countermeasure, what does the examiner use as a countermeasure to countermeasure?
Us a Zone Comparison test, so that the position of certain questions are rotated with each chart administered and utilizes questions that elicit an affirmative answer and some that elicit a negative answer from the examinee.
In the 1982 study conducted by Elaad and associates, the use of Trasicor, a beta blocking agent, revealed that the medication impacted an examinees overall physiology when taking a PV examination. Compared to the placebo group, what would a forensic psychophysiologist expect to be affected during a PV examination?
respiration recordings are not affected by the drug, but skin resistance responses would be the most vulnerable. In control question examinations, whatever effect the drug or medication may have on the relevant questions will also have the same effect on the control questions.
A momentary cessation of breathing at the end of the inspiration limb of the breathing cycle is inspiration
apnea (holding) and is usually a voluntary action.
An examiner who observes an apnea in the expiration limb of the breathing tracing should
have confidence that blocking is usually an involuntary action of the pneumotaxic center of the Pons, constituting a legitimate reaction.
How is the parasympathetic nervous system most likely to influence a subject's reactions during a polygraph examination?
By decreasing heart rate and blood pressure
Test your knowledge on the function of a one-way valve that prevents blood from re-entering the heart. Identify the name of this valve that closes under pressure.
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